8131892 has 6 divisors (see below), whose sum is σ = 14230818. Its totient is φ = 4065944.

The previous prime is 8131873. The next prime is 8131901. The reversal of 8131892 is 2981318.

It can be written as a sum of positive squares in only one way, i.e., 6584356 + 1547536 = 2566^2 + 1244^2 .

It is a super-2 number, since 2×8131892² = 132255334999328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1016483 + ... + 1016490.

It is an arithmetic number, because the mean of its divisors is an integer number (2371803).

Almost surely, 2^8131892 is an apocalyptic number.

It is an amenable number.

8131892 is a deficient number, since it is larger than the sum of its proper divisors (6098926).

8131892 is a wasteful number, since it uses less digits than its factorization.

8131892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032977 (or 2032975 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 8131892 is about 2851.6472432613. The cubic root of 8131892 is about 201.0931146175.

The spelling of 8131892 in words is "eight million, one hundred thirty-one thousand, eight hundred ninety-two".