82202131 has 4 divisors (see below), whose sum is σ = 89675064. Its totient is φ = 74729200.

The previous prime is 82202119. The next prime is 82202177. The reversal of 82202131 is 13120228.

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 82202131 - 2²⁵ = 48647699 is a prime.

It is a super-2 number, since 2×82202131² = 13514380681882322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82202099 and 82202108.

It is not an unprimeable number, because it can be changed into a prime (82202101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3736450 + ... + 3736471.

It is an arithmetic number, because the mean of its divisors is an integer number (22418766).

Almost surely, 2^82202131 is an apocalyptic number.

82202131 is a deficient number, since it is larger than the sum of its proper divisors (7472933).

82202131 is a wasteful number, since it uses less digits than its factorization.

82202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472932.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 82202131 is about 9066.5390861122. The cubic root of 82202131 is about 434.8048289915.

Adding to 82202131 its reverse (13120228), we get a palindrome (95322359).

The spelling of 82202131 in words is "eighty-two million, two hundred two thousand, one hundred thirty-one".