157310172 has 36 divisors (see below), whose sum is σ = 402685920. Its totient is φ = 51772032.

The previous prime is 157310161. The next prime is 157310261. The reversal of 157310172 is 271013751.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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, 24813 + ... + 30500.

It is an arithmetic number, because the mean of its divisors is an integer number (11185720).

Almost surely, 2^157310172 is an apocalyptic number.

157310172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157310172 is an abundant number, since it is smaller than the sum of its proper divisors (245375748).

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

157310172 is a wasteful number, since it uses less digits than its factorization.

157310172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55402 (or 55397 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 157310172 is about 12542.3351892700. The cubic root of 157310172 is about 539.8240990864.

The spelling of 157310172 in words is "one hundred fifty-seven million, three hundred ten thousand, one hundred seventy-two".