82412131 has 4 divisors (see below), whose sum is σ = 83338200. Its totient is φ = 81486064.

The previous prime is 82412129. The next prime is 82412179. The reversal of 82412131 is 13121428.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82412131 - 2¹ = 82412129 is a prime.

It is a super-2 number, since 2×82412131² = 13583518671922322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82412531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462901 + ... + 463078.

It is an arithmetic number, because the mean of its divisors is an integer number (20834550).

Almost surely, 2^82412131 is an apocalyptic number.

82412131 is a deficient number, since it is larger than the sum of its proper divisors (926069).

82412131 is an equidigital number, since it uses as much as digits as its factorization.

82412131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926068.

The product of its digits is 384, while the sum is 22.

The square root of 82412131 is about 9078.1127443979. The cubic root of 82412131 is about 435.1747762913.

Adding to 82412131 its reverse (13121428), we get a palindrome (95533559).

The spelling of 82412131 in words is "eighty-two million, four hundred twelve thousand, one hundred thirty-one".