140631255540 has 60 divisors (see below), whose sum is σ = 441165462276. Its totient is φ = 37501667712.

The previous prime is 140631255533. The next prime is 140631255547. The reversal of 140631255540 is 45552136041.

140631255540 is a `hidden beast` number, since 1 + 4 + 0 + 63 + 1 + 2 + 55 + 540 = 666.

140631255540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140631255533) and next prime (140631255547).

It can be written as a sum of positive squares in 2 ways, for example, as 55211840784 + 85419414756 = 234972^2 + 292266^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140631255495 and 140631255504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140631255547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43403089 + ... + 43406328.

Almost surely, 2^140631255540 is an apocalyptic number.

140631255540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140631255540 is an abundant number, since it is smaller than the sum of its proper divisors (300534206736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140631255540 is a wasteful number, since it uses less digits than its factorization.

140631255540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86809438 (or 86809427 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 140631255540 in words is "one hundred forty billion, six hundred thirty-one million, two hundred fifty-five thousand, five hundred forty".