82156494 has 32 divisors (see below), whose sum is σ = 197671680. Its totient is φ = 22237632.

The previous prime is 82156493. The next prime is 82156511. The reversal of 82156494 is 49465128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82156493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50679 + ... + 52274.

It is an arithmetic number, because the mean of its divisors is an integer number (6177240).

Almost surely, 2^82156494 is an apocalyptic number.

82156494 is an abundant number, since it is smaller than the sum of its proper divisors (115515186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82156494 is a wasteful number, since it uses less digits than its factorization.

82156494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102984.

The product of its digits is 69120, while the sum is 39.

The square root of 82156494 is about 9064.0219549602. The cubic root of 82156494 is about 434.7243490775.

The spelling of 82156494 in words is "eighty-two million, one hundred fifty-six thousand, four hundred ninety-four".