131388887507 has 8 divisors (see below), whose sum is σ = 131603422896. Its totient is φ = 131174410752.

The previous prime is 131388887503. The next prime is 131388887519. The reversal of 131388887507 is 705788883131.

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 131388887507 - 2² = 131388887503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131388887503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7513388 + ... + 7530854.

It is an arithmetic number, because the mean of its divisors is an integer number (16450427862).

Almost surely, 2^131388887507 is an apocalyptic number.

131388887507 is a deficient number, since it is larger than the sum of its proper divisors (214535389).

131388887507 is a wasteful number, since it uses less digits than its factorization.

131388887507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29317.

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 131388887507 in words is "one hundred thirty-one billion, three hundred eighty-eight million, eight hundred eighty-seven thousand, five hundred seven".