131358868 has 12 divisors (see below), whose sum is σ = 230774292. Its totient is φ = 65423360.

The previous prime is 131358859. The next prime is 131358889. The reversal of 131358868 is 868853131.

It can be written as a sum of positive squares in 2 ways, for example, as 78535044 + 52823824 = 8862^2 + 7268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62863 + ... + 64918.

It is an arithmetic number, because the mean of its divisors is an integer number (19231191).

Almost surely, 2^131358868 is an apocalyptic number.

It is an amenable number.

131358868 is a deficient number, since it is larger than the sum of its proper divisors (99415424).

131358868 is a wasteful number, since it uses less digits than its factorization.

131358868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128042 (or 128040 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 131358868 is about 11461.1896415686. The cubic root of 131358868 is about 508.3386513702.

The spelling of 131358868 in words is "one hundred thirty-one million, three hundred fifty-eight thousand, eight hundred sixty-eight".