157170351 has 16 divisors (see below), whose sum is σ = 228221280. Its totient is φ = 95631360.

The previous prime is 157170347. The next prime is 157170353. The reversal of 157170351 is 153071751.

It is not a de Polignac number, because 157170351 - 2² = 157170347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157170353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19170 + ... + 26111.

It is an arithmetic number, because the mean of its divisors is an integer number (14263830).

Almost surely, 2^157170351 is an apocalyptic number.

157170351 is a deficient number, since it is larger than the sum of its proper divisors (71050929).

157170351 is a wasteful number, since it uses less digits than its factorization.

157170351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45386.

The product of its (nonzero) digits is 3675, while the sum is 30.

The square root of 157170351 is about 12536.7599881309. The cubic root of 157170351 is about 539.6641155374.

The spelling of 157170351 in words is "one hundred fifty-seven million, one hundred seventy thousand, three hundred fifty-one".