131664601 has 8 divisors (see below), whose sum is σ = 134414208. Its totient is φ = 128940000.

The previous prime is 131664593. The next prime is 131664607. The reversal of 131664601 is 106466131.

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 131664601 - 2³ = 131664593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131664601.

It is not an unprimeable number, because it can be changed into a prime (131664607) 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, 4581 + ... + 16861.

It is an arithmetic number, because the mean of its divisors is an integer number (16801776).

Almost surely, 2^131664601 is an apocalyptic number.

It is an amenable number.

131664601 is a deficient number, since it is larger than the sum of its proper divisors (2749607).

131664601 is a wasteful number, since it uses less digits than its factorization.

131664601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12503.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 131664601 is about 11474.5196413619. The cubic root of 131664601 is about 508.7327257203.

The spelling of 131664601 in words is "one hundred thirty-one million, six hundred sixty-four thousand, six hundred one".