97319153 has 4 divisors (see below), whose sum is σ = 97506468. Its totient is φ = 97131840.

The previous prime is 97319149. The next prime is 97319177. The reversal of 97319153 is 35191379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35191379 = 877 ⋅40127.

It can be written as a sum of positive squares in 2 ways, for example, as 72199009 + 25120144 = 8497^2 + 5012^2 .

It is a cyclic number.

It is not a de Polignac number, because 97319153 - 2² = 97319149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97319113) 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, 92876 + ... + 93917.

It is an arithmetic number, because the mean of its divisors is an integer number (24376617).

Almost surely, 2^97319153 is an apocalyptic number.

It is an amenable number.

97319153 is a deficient number, since it is larger than the sum of its proper divisors (187315).

97319153 is a wasteful number, since it uses less digits than its factorization.

97319153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187314.

The product of its digits is 25515, while the sum is 38.

The square root of 97319153 is about 9865.0470348600. The cubic root of 97319153 is about 459.9734594013.

The spelling of 97319153 in words is "ninety-seven million, three hundred nineteen thousand, one hundred fifty-three".