131466601 has 4 divisors (see below), whose sum is σ = 150247552. Its totient is φ = 112685652.

The previous prime is 131466589. The next prime is 131466607. The reversal of 131466601 is 106664131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131466601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131466601.

It is not an unprimeable number, because it can be changed into a prime (131466607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9390465 + ... + 9390478.

It is an arithmetic number, because the mean of its divisors is an integer number (37561888).

Almost surely, 2^131466601 is an apocalyptic number.

It is an amenable number.

131466601 is a deficient number, since it is larger than the sum of its proper divisors (18780951).

131466601 is an equidigital number, since it uses as much as digits as its factorization.

131466601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18780950.

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

The square root of 131466601 is about 11465.8885830973. Note that the first 3 decimals coincide. The cubic root of 131466601 is about 508.4775834523.

The spelling of 131466601 in words is "one hundred thirty-one million, four hundred sixty-six thousand, six hundred one".