82102515 has 32 divisors (see below), whose sum is σ = 150854400. Its totient is φ = 37710720.

The previous prime is 82102507. The next prime is 82102529. The reversal of 82102515 is 51520128.

It is not a de Polignac number, because 82102515 - 2³ = 82102507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9960 + ... + 16229.

It is an arithmetic number, because the mean of its divisors is an integer number (4714200).

Almost surely, 2^82102515 is an apocalyptic number.

82102515 is a deficient number, since it is larger than the sum of its proper divisors (68751885).

82102515 is a wasteful number, since it uses less digits than its factorization.

82102515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26227.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 82102515 is about 9061.0438140426. The cubic root of 82102515 is about 434.6291197348.

The spelling of 82102515 in words is "eighty-two million, one hundred two thousand, five hundred fifteen".