131765908 has 12 divisors (see below), whose sum is σ = 238541940. Its totient is φ = 63611072.

The previous prime is 131765869. The next prime is 131765947. The reversal of 131765908 is 809567131.

It is an interprime number because it is at equal distance from previous prime (131765869) and next prime (131765947).

It can be written as a sum of positive squares in 2 ways, for example, as 52591504 + 79174404 = 7252^2 + 8898^2 .

It is a super-2 number, since 2×131765908² = 34724509022128928, which contains 22 as substring.

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, 567841 + ... + 568072.

It is an arithmetic number, because the mean of its divisors is an integer number (19878495).

Almost surely, 2^131765908 is an apocalyptic number.

It is an amenable number.

131765908 is a deficient number, since it is larger than the sum of its proper divisors (106776032).

131765908 is a wasteful number, since it uses less digits than its factorization.

131765908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135946 (or 1135944 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 131765908 is about 11478.9332256965. The cubic root of 131765908 is about 508.8631707377.

The spelling of 131765908 in words is "one hundred thirty-one million, seven hundred sixty-five thousand, nine hundred eight".