82331129 has 2 divisors, whose sum is σ = 82331130. Its totient is φ = 82331128.

The previous prime is 82331113. The next prime is 82331177. The reversal of 82331129 is 92113328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52954729 + 29376400 = 7277^2 + 5420^2 .

It is a cyclic number.

It is not a de Polignac number, because 82331129 - 2⁴ = 82331113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (82331189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41165564 + 41165565.

It is an arithmetic number, because the mean of its divisors is an integer number (41165565).

Almost surely, 2^82331129 is an apocalyptic number.

It is an amenable number.

82331129 is a deficient number, since it is larger than the sum of its proper divisors (1).

82331129 is an equidigital number, since it uses as much as digits as its factorization.

82331129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 82331129 is about 9073.6502577518. The cubic root of 82331129 is about 435.0321533462.

The spelling of 82331129 in words is "eighty-two million, three hundred thirty-one thousand, one hundred twenty-nine".