156140457 has 12 divisors (see below), whose sum is σ = 228834480. Its totient is φ = 94630360.

The previous prime is 156140449. The next prime is 156140489. The reversal of 156140457 is 754041651.

It is not a de Polignac number, because 156140457 - 2³ = 156140449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (156140557) 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 11 ways as a sum of consecutive naturals, for example, 214707 + ... + 215432.

It is an arithmetic number, because the mean of its divisors is an integer number (19069540).

Almost surely, 2^156140457 is an apocalyptic number.

It is an amenable number.

156140457 is a deficient number, since it is larger than the sum of its proper divisors (72694023).

156140457 is a wasteful number, since it uses less digits than its factorization.

156140457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430164 (or 430153 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 156140457 is about 12495.6175117519. The cubic root of 156140457 is about 538.4827746878.

The spelling of 156140457 in words is "one hundred fifty-six million, one hundred forty thousand, four hundred fifty-seven".