82919131 has 8 divisors (see below), whose sum is σ = 84614400. Its totient is φ = 81233640.

The previous prime is 82919129. The next prime is 82919153. The reversal of 82919131 is 13191928.

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

It is a cyclic number.

It is not a de Polignac number, because 82919131 - 2¹ = 82919129 is a prime.

It is a super-2 number, since 2×82919131² = 13751164571590322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82919101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16090 + ... + 20608.

It is an arithmetic number, because the mean of its divisors is an integer number (10576800).

Almost surely, 2^82919131 is an apocalyptic number.

82919131 is a deficient number, since it is larger than the sum of its proper divisors (1695269).

82919131 is a wasteful number, since it uses less digits than its factorization.

82919131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889.

The product of its digits is 3888, while the sum is 34.

The square root of 82919131 is about 9105.9942345688. The cubic root of 82919131 is about 436.0653519159.

The spelling of 82919131 in words is "eighty-two million, nine hundred nineteen thousand, one hundred thirty-one".