131660733 has 8 divisors (see below), whose sum is σ = 185874048. Its totient is φ = 82610624.

The previous prime is 131660723. The next prime is 131660777. The reversal of 131660733 is 337066131.

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 131660733 - 2¹⁰ = 131659709 is a prime.

It is a super-2 number, since 2×131660733² = 34669097228194578, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131660733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131660723) 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, 1290741 + ... + 1290842.

It is an arithmetic number, because the mean of its divisors is an integer number (23234256).

Almost surely, 2^131660733 is an apocalyptic number.

It is an amenable number.

131660733 is a deficient number, since it is larger than the sum of its proper divisors (54213315).

131660733 is a wasteful number, since it uses less digits than its factorization.

131660733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581603.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 131660733 is about 11474.3510927634. The cubic root of 131660733 is about 508.7277438764.

The spelling of 131660733 in words is "one hundred thirty-one million, six hundred sixty thousand, seven hundred thirty-three".