97157319 has 32 divisors (see below), whose sum is σ = 152340480. Its totient is φ = 53928192.

The previous prime is 97157311. The next prime is 97157341. The reversal of 97157319 is 91375179.

It is not a de Polignac number, because 97157319 - 2³ = 97157311 is a prime.

It is a super-2 number, since 2×97157319² = 18879089270535522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97157311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170467 + ... + 171035.

It is an arithmetic number, because the mean of its divisors is an integer number (4760640).

Almost surely, 2^97157319 is an apocalyptic number.

97157319 is a deficient number, since it is larger than the sum of its proper divisors (55183161).

97157319 is a wasteful number, since it uses less digits than its factorization.

97157319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its digits is 59535, while the sum is 42.

The square root of 97157319 is about 9856.8412283043. The cubic root of 97157319 is about 459.7183515322.

The spelling of 97157319 in words is "ninety-seven million, one hundred fifty-seven thousand, three hundred nineteen".