156117157 has 8 divisors (see below), whose sum is σ = 178649856. Its totient is φ = 133642032.

The previous prime is 156117151. The next prime is 156117191. The reversal of 156117157 is 751711651.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 156117157 - 2¹¹ = 156115109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156117151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8413 + ... + 19570.

It is an arithmetic number, because the mean of its divisors is an integer number (22331232).

Almost surely, 2^156117157 is an apocalyptic number.

It is an amenable number.

156117157 is a deficient number, since it is larger than the sum of its proper divisors (22532699).

156117157 is an equidigital number, since it uses as much as digits as its factorization.

156117157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28787.

The product of its digits is 7350, while the sum is 34.

The square root of 156117157 is about 12494.6851500948. The cubic root of 156117157 is about 538.4559883933.

The spelling of 156117157 in words is "one hundred fifty-six million, one hundred seventeen thousand, one hundred fifty-seven".