131313086615 has 8 divisors (see below), whose sum is σ = 165869162160. Its totient is φ = 99521497152.

The previous prime is 131313086581. The next prime is 131313086627. The reversal of 131313086615 is 516680313131.

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 a de Polignac number, because none of the positive numbers 2^k-131313086615 is a prime.

It is a congruent number.

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, 691121414 + ... + 691121603.

It is an arithmetic number, because the mean of its divisors is an integer number (20733645270).

Almost surely, 2^131313086615 is an apocalyptic number.

131313086615 is a deficient number, since it is larger than the sum of its proper divisors (34556075545).

131313086615 is a wasteful number, since it uses less digits than its factorization.

131313086615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382243041.

The product of its (nonzero) digits is 38880, while the sum is 38.

Adding to 131313086615 its reverse (516680313131), we get a palindrome (647993399746).

The spelling of 131313086615 in words is "one hundred thirty-one billion, three hundred thirteen million, eighty-six thousand, six hundred fifteen".