82541631 has 8 divisors (see below), whose sum is σ = 110123824. Its totient is φ = 54993600.

The previous prime is 82541629. The next prime is 82541633. The reversal of 82541631 is 13614528.

It is an interprime number because it is at equal distance from previous prime (82541629) and next prime (82541633).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82541631 - 2¹ = 82541629 is a prime.

It is a super-2 number, since 2×82541631² = 13626241696280322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82541633) 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, 2236 + ... + 13041.

It is an arithmetic number, because the mean of its divisors is an integer number (13765478).

Almost surely, 2^82541631 is an apocalyptic number.

82541631 is a deficient number, since it is larger than the sum of its proper divisors (27582193).

82541631 is a wasteful number, since it uses less digits than its factorization.

82541631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17081.

The product of its digits is 5760, while the sum is 30.

The square root of 82541631 is about 9085.2424843809. The cubic root of 82541631 is about 435.4025972861.

The spelling of 82541631 in words is "eighty-two million, five hundred forty-one thousand, six hundred thirty-one".