140056155 has 32 divisors (see below), whose sum is σ = 251219520. Its totient is φ = 74027520.

The previous prime is 140056141. The next prime is 140056159. The reversal of 140056155 is 551650041.

It is a happy number.

140056155 is a `hidden beast` number, since 1 + 40 + 0 + 5 + 615 + 5 = 666.

It is not a de Polignac number, because 140056155 - 2⁴ = 140056139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140056159) 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 31 ways as a sum of consecutive naturals, for example, 10665 + ... + 19845.

It is an arithmetic number, because the mean of its divisors is an integer number (7850610).

Almost surely, 2^140056155 is an apocalyptic number.

140056155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140056155 is a deficient number, since it is larger than the sum of its proper divisors (111163365).

140056155 is a wasteful number, since it uses less digits than its factorization.

140056155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9308 (or 9302 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 140056155 is about 11834.5323101507. The cubic root of 140056155 is about 519.3188257874.

The spelling of 140056155 in words is "one hundred forty million, fifty-six thousand, one hundred fifty-five".