83149072 has 10 divisors (see below), whose sum is σ = 161101358. Its totient is φ = 41574528.

The previous prime is 83149043. The next prime is 83149109. The reversal of 83149072 is 27094138.

It can be written as a sum of positive squares in only one way, i.e., 82882816 + 266256 = 9104^2 + 516^2 .

It is a super-2 number, since 2×83149072² = 13827536348922368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2598393 + ... + 2598424.

Almost surely, 2^83149072 is an apocalyptic number.

It is an amenable number.

83149072 is a deficient number, since it is larger than the sum of its proper divisors (77952286).

83149072 is a wasteful number, since it uses less digits than its factorization.

83149072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196825 (or 5196819 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 83149072 is about 9118.6112977799. The cubic root of 83149072 is about 436.4680605937.

The spelling of 83149072 in words is "eighty-three million, one hundred forty-nine thousand, seventy-two".