92139885 has 12 divisors (see below), whose sum is σ = 159709212. Its totient is φ = 49141248.

The previous prime is 92139871. The next prime is 92139919. The reversal of 92139885 is 58893129.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24472809 + 67667076 = 4947^2 + 8226^2 .

It is not a de Polignac number, because 92139885 - 2⁴ = 92139869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2047553 = 92139885 / (9 + 2 + 1 + 3 + 9 + 8 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 92139885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1023732 + ... + 1023821.

It is an arithmetic number, because the mean of its divisors is an integer number (13309101).

Almost surely, 2^92139885 is an apocalyptic number.

It is an amenable number.

92139885 is a deficient number, since it is larger than the sum of its proper divisors (67569327).

92139885 is a wasteful number, since it uses less digits than its factorization.

92139885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047564 (or 2047561 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 92139885 is about 9598.9522865779. The cubic root of 92139885 is about 451.6644287291.

Subtracting from 92139885 its reverse (58893129), we obtain a square (33246756 = 5766²).

The spelling of 92139885 in words is "ninety-two million, one hundred thirty-nine thousand, eight hundred eighty-five".