131913801 has 12 divisors (see below), whose sum is σ = 191685312. Its totient is φ = 87414936.

The previous prime is 131913737. The next prime is 131913823. The reversal of 131913801 is 108319131.

It is a happy number.

It is not a de Polignac number, because 131913801 - 2⁶ = 131913737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131914801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42381 + ... + 45386.

It is an arithmetic number, because the mean of its divisors is an integer number (15973776).

Almost surely, 2^131913801 is an apocalyptic number.

It is an amenable number.

131913801 is a deficient number, since it is larger than the sum of its proper divisors (59771511).

131913801 is a wasteful number, since it uses less digits than its factorization.

131913801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87940 (or 87937 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 131913801 is about 11485.3733504836. The cubic root of 131913801 is about 509.0534808706.

The spelling of 131913801 in words is "one hundred thirty-one million, nine hundred thirteen thousand, eight hundred one".