83281136 has 10 divisors (see below), whose sum is σ = 161357232. Its totient is φ = 41640560.

The previous prime is 83281129. The next prime is 83281141. The reversal of 83281136 is 63118238.

It is a happy number.

It is a super-2 number, since 2×83281136² = 13871495226900992, which contains 22 as substring.

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, 2602520 + ... + 2602551.

Almost surely, 2^83281136 is an apocalyptic number.

It is an amenable number.

83281136 is a deficient number, since it is larger than the sum of its proper divisors (78076096).

83281136 is a wasteful number, since it uses less digits than its factorization.

83281136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205079 (or 5205073 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 83281136 is about 9125.8498782305. The cubic root of 83281136 is about 436.6990161791.

The spelling of 83281136 in words is "eighty-three million, two hundred eighty-one thousand, one hundred thirty-six".