97515 has 24 divisors (see below), whose sum is σ = 185328. Its totient is φ = 47040.

The previous prime is 97511. The next prime is 97523. The reversal of 97515 is 51579.

97515 = 12² + 13² + ... + 66².

It is not a de Polignac number, because 97515 - 2² = 97511 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (97511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397 + ... + 593.

It is an arithmetic number, because the mean of its divisors is an integer number (7722).

2⁹⁷⁵¹⁵ is an apocalyptic number.

97515 is a deficient number, since it is larger than the sum of its proper divisors (87813).

97515 is a wasteful number, since it uses less digits than its factorization.

97515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 216 counting only the distinct ones).

The product of its digits is 1575, while the sum is 27.

The square root of 97515 is about 312.2739182192. The cubic root of 97515 is about 46.0281805900.

It can be divided in two parts, 975 and 15, that added together give a triangular number (990 = T₄₄).

The spelling of 97515 in words is "ninety-seven thousand, five hundred fifteen".