82137574 has 16 divisors (see below), whose sum is σ = 131126688. Its totient is φ = 38453632.

The previous prime is 82137571. The next prime is 82137593. The reversal of 82137574 is 47573128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82137571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567 + ... + 12829.

It is an arithmetic number, because the mean of its divisors is an integer number (8195418).

Almost surely, 2^82137574 is an apocalyptic number.

82137574 is a deficient number, since it is larger than the sum of its proper divisors (48989114).

82137574 is a wasteful number, since it uses less digits than its factorization.

82137574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12479.

The product of its digits is 47040, while the sum is 37.

The square root of 82137574 is about 9062.9782080727. The cubic root of 82137574 is about 434.6909753061.

The spelling of 82137574 in words is "eighty-two million, one hundred thirty-seven thousand, five hundred seventy-four".