131795661 has 8 divisors (see below), whose sum is σ = 179466624. Its totient is φ = 85994240.

The previous prime is 131795627. The next prime is 131795687. The reversal of 131795661 is 166597131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131795661 - 2⁶ = 131795597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131795861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467220 + ... + 467501.

It is an arithmetic number, because the mean of its divisors is an integer number (22433328).

Almost surely, 2^131795661 is an apocalyptic number.

It is an amenable number.

131795661 is a deficient number, since it is larger than the sum of its proper divisors (47670963).

131795661 is an equidigital number, since it uses as much as digits as its factorization.

131795661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934771.

The product of its digits is 34020, while the sum is 39.

The square root of 131795661 is about 11480.2291353439. The cubic root of 131795661 is about 508.9014686220.

The spelling of 131795661 in words is "one hundred thirty-one million, seven hundred ninety-five thousand, six hundred sixty-one".