82133908 has 6 divisors (see below), whose sum is σ = 143734346. Its totient is φ = 41066952.

The previous prime is 82133879. The next prime is 82133921. The reversal of 82133908 is 80933128.

It can be written as a sum of positive squares in only one way, i.e., 81216144 + 917764 = 9012^2 + 958^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10266735 + ... + 10266742.

Almost surely, 2^82133908 is an apocalyptic number.

It is an amenable number.

82133908 is a deficient number, since it is larger than the sum of its proper divisors (61600438).

82133908 is a wasteful number, since it uses less digits than its factorization.

82133908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20533481 (or 20533479 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 82133908 is about 9062.7759544193. The cubic root of 82133908 is about 434.6845081042.

It can be divided in two parts, 8213 and 3908, that added together give a palindrome (12121).

The spelling of 82133908 in words is "eighty-two million, one hundred thirty-three thousand, nine hundred eight".