82274139 has 24 divisors (see below), whose sum is σ = 121804592. Its totient is φ = 53498880.

The previous prime is 82274113. The next prime is 82274149. The reversal of 82274139 is 93147228.

It is not a de Polignac number, because 82274139 - 2⁹ = 82273627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82274149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63084 + ... + 64374.

Almost surely, 2^82274139 is an apocalyptic number.

82274139 is a deficient number, since it is larger than the sum of its proper divisors (39530453).

82274139 is a wasteful number, since it uses less digits than its factorization.

82274139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467 (or 1464 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 82274139 is about 9070.5093021285. The cubic root of 82274139 is about 434.9317530666.

The spelling of 82274139 in words is "eighty-two million, two hundred seventy-four thousand, one hundred thirty-nine".