131986801 has 16 divisors (see below), whose sum is σ = 141004800. Its totient is φ = 123334848.

The previous prime is 131986781. The next prime is 131986817. The reversal of 131986801 is 108689131.

It is a cyclic number.

It is not a de Polignac number, because 131986801 - 2²¹ = 129889649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131986891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120880 + ... + 121966.

It is an arithmetic number, because the mean of its divisors is an integer number (8812800).

Almost surely, 2^131986801 is an apocalyptic number.

It is an amenable number.

131986801 is a deficient number, since it is larger than the sum of its proper divisors (9017999).

131986801 is a wasteful number, since it uses less digits than its factorization.

131986801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 131986801 is about 11488.5508659709. The cubic root of 131986801 is about 509.1473655415.

The spelling of 131986801 in words is "one hundred thirty-one million, nine hundred eighty-six thousand, eight hundred one".