839160081 has 20 divisors (see below), whose sum is σ = 1255095732. Its totient is φ = 558754848.

The previous prime is 839160067. The next prime is 839160089. The reversal of 839160081 is 180061938.

It can be written as a sum of positive squares in 2 ways, for example, as 530841600 + 308318481 = 23040^2 + 17559^2 .

It is not a de Polignac number, because 839160081 - 2⁷ = 839159953 is a prime.

It is a super-2 number, since 2×839160081² = 1408379283087853122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (839160089) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65131 + ... + 76943.

Almost surely, 2^839160081 is an apocalyptic number.

839160081 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

839160081 is a deficient number, since it is larger than the sum of its proper divisors (415935651).

839160081 is a wasteful number, since it uses less digits than its factorization.

839160081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12702 (or 12693 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 839160081 is about 28968.2598890579. The cubic root of 839160081 is about 943.2242085836.

The spelling of 839160081 in words is "eight hundred thirty-nine million, one hundred sixty thousand, eighty-one".