140055540 has 24 divisors (see below), whose sum is σ = 392155680. Its totient is φ = 37348128.

The previous prime is 140055497. The next prime is 140055541. The reversal of 140055540 is 45550041.

It is a self number, because there is not a number n which added to its sum of digits gives 140055540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140055541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167070 + ... + 1167189.

It is an arithmetic number, because the mean of its divisors is an integer number (16339820).

Almost surely, 2^140055540 is an apocalyptic number.

140055540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140055540 is an abundant number, since it is smaller than the sum of its proper divisors (252100140).

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

140055540 is a wasteful number, since it uses less digits than its factorization.

140055540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334271 (or 2334269 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 140055540 is about 11834.5063268393. The cubic root of 140055540 is about 519.3180656600.

The spelling of 140055540 in words is "one hundred forty million, fifty-five thousand, five hundred forty".