157172116 has 12 divisors (see below), whose sum is σ = 276448788. Its totient is φ = 78186752.

The previous prime is 157172111. The next prime is 157172117. The reversal of 157172116 is 611271751.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 100922116 + 56250000 = 10046^2 + 7500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157172111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98941 + ... + 100516.

It is an arithmetic number, because the mean of its divisors is an integer number (23037399).

Almost surely, 2^157172116 is an apocalyptic number.

It is an amenable number.

157172116 is a deficient number, since it is larger than the sum of its proper divisors (119276672).

157172116 is a wasteful number, since it uses less digits than its factorization.

157172116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199658 (or 199656 counting only the distinct ones).

The product of its digits is 2940, while the sum is 31.

The square root of 157172116 is about 12536.8303809216. The cubic root of 157172116 is about 539.6661356462. Note that the first 3 decimals are identical.

The spelling of 157172116 in words is "one hundred fifty-seven million, one hundred seventy-two thousand, one hundred sixteen".