82523157 has 16 divisors (see below), whose sum is σ = 111164928. Its totient is φ = 54452160.

The previous prime is 82523153. The next prime is 82523159. The reversal of 82523157 is 75132528.

It is not a de Polignac number, because 82523157 - 2² = 82523153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82523153) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 195807 + ... + 196227.

It is an arithmetic number, because the mean of its divisors is an integer number (6947808).

Almost surely, 2^82523157 is an apocalyptic number.

It is an amenable number.

82523157 is a deficient number, since it is larger than the sum of its proper divisors (28641771).

82523157 is a wasteful number, since it uses less digits than its factorization.

82523157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its digits is 16800, while the sum is 33.

The square root of 82523157 is about 9084.2257237477. The cubic root of 82523157 is about 435.3701117486.

The spelling of 82523157 in words is "eighty-two million, five hundred twenty-three thousand, one hundred fifty-seven".