82130308 has 12 divisors (see below), whose sum is σ = 154784140. Its totient is φ = 37906272.

The previous prime is 82130299. The next prime is 82130317. The reversal of 82130308 is 80303128.

It is an interprime number because it is at equal distance from previous prime (82130299) and next prime (82130317).

It can be written as a sum of positive squares in 2 ways, for example, as 10355524 + 71774784 = 3218^2 + 8472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789663 + ... + 789766.

Almost surely, 2^82130308 is an apocalyptic number.

It is an amenable number.

82130308 is a deficient number, since it is larger than the sum of its proper divisors (72653832).

82130308 is a wasteful number, since it uses less digits than its factorization.

82130308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579446 (or 1579444 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 82130308 is about 9062.5773376010. The cubic root of 82130308 is about 434.6781571458.

The spelling of 82130308 in words is "eighty-two million, one hundred thirty thousand, three hundred eight".