82515274 has 8 divisors (see below), whose sum is σ = 123962148. Its totient is φ = 41194560.

The previous prime is 82515187. The next prime is 82515299. The reversal of 82515274 is 47251528.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79477225 + 3038049 = 8915^2 + 1743^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29887 + ... + 32530.

Almost surely, 2^82515274 is an apocalyptic number.

82515274 is a deficient number, since it is larger than the sum of its proper divisors (41446874).

82515274 is a wasteful number, since it uses less digits than its factorization.

82515274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63080.

The product of its digits is 22400, while the sum is 34.

The square root of 82515274 is about 9083.7918294069. The cubic root of 82515274 is about 435.3562484404.

The spelling of 82515274 in words is "eighty-two million, five hundred fifteen thousand, two hundred seventy-four".