131913115 has 8 divisors (see below), whose sum is σ = 167607360. Its totient is φ = 99322752.

The previous prime is 131913107. The next prime is 131913137. The reversal of 131913115 is 511319131.

It is a happy number.

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 131913115 - 2³ = 131913107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131913115.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775875 + ... + 776044.

It is an arithmetic number, because the mean of its divisors is an integer number (20950920).

Almost surely, 2^131913115 is an apocalyptic number.

131913115 is a deficient number, since it is larger than the sum of its proper divisors (35694245).

131913115 is a wasteful number, since it uses less digits than its factorization.

131913115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551941.

The product of its digits is 405, while the sum is 25.

The square root of 131913115 is about 11485.3434863743. The cubic root of 131913115 is about 509.0525984477.

The spelling of 131913115 in words is "one hundred thirty-one million, nine hundred thirteen thousand, one hundred fifteen".