97319139 has 8 divisors (see below), whose sum is σ = 133266000. Its totient is φ = 63125856.

The previous prime is 97319113. The next prime is 97319149. The reversal of 97319139 is 93191379.

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

It is not a de Polignac number, because 97319139 - 2²⁰ = 96270563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97319139.

It is not an unprimeable number, because it can be changed into a prime (97319149) 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, 438264 + ... + 438485.

It is an arithmetic number, because the mean of its divisors is an integer number (16658250).

Almost surely, 2^97319139 is an apocalyptic number.

97319139 is a deficient number, since it is larger than the sum of its proper divisors (35946861).

97319139 is a wasteful number, since it uses less digits than its factorization.

97319139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876789.

The product of its digits is 45927, while the sum is 42.

The square root of 97319139 is about 9865.0463252840. The cubic root of 97319139 is about 459.9734373446.

The spelling of 97319139 in words is "ninety-seven million, three hundred nineteen thousand, one hundred thirty-nine".