82161315 has 24 divisors (see below), whose sum is σ = 147009408. Its totient is φ = 42405120.

The previous prime is 82161293. The next prime is 82161389. The reversal of 82161315 is 51316128.

It is not a de Polignac number, because 82161315 - 2⁶ = 82161251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28054 + ... + 30843.

It is an arithmetic number, because the mean of its divisors is an integer number (6125392).

Almost surely, 2^82161315 is an apocalyptic number.

82161315 is a deficient number, since it is larger than the sum of its proper divisors (64848093).

82161315 is a wasteful number, since it uses less digits than its factorization.

82161315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58939 (or 58936 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 82161315 is about 9064.2878926036. The cubic root of 82161315 is about 434.7328522199.

The spelling of 82161315 in words is "eighty-two million, one hundred sixty-one thousand, three hundred fifteen".