82531274 has 16 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 34150704.

The previous prime is 82531271. The next prime is 82531283. The reversal of 82531274 is 47213528.

It is a super-2 number, since 2×82531274² = 13622822376126152, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82531274.

It is not an unprimeable number, because it can be changed into a prime (82531271) 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, 101234 + ... + 102045.

It is an arithmetic number, because the mean of its divisors is an integer number (9147600).

Almost surely, 2^82531274 is an apocalyptic number.

82531274 is a deficient number, since it is larger than the sum of its proper divisors (63830326).

82531274 is a wasteful number, since it uses less digits than its factorization.

82531274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203317.

The product of its digits is 13440, while the sum is 32.

The square root of 82531274 is about 9084.6724762096. The cubic root of 82531274 is about 435.3843856545.

The spelling of 82531274 in words is "eighty-two million, five hundred thirty-one thousand, two hundred seventy-four".