131667004087 has 4 divisors (see below), whose sum is σ = 131695184880. Its totient is φ = 131638823296.

The previous prime is 131667004069. The next prime is 131667004111. The reversal of 131667004087 is 780400766131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131667004087 is a prime.

It is a super-4 number, since 4×131667004087⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131667004037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14083387 + ... + 14092732.

It is an arithmetic number, because the mean of its divisors is an integer number (32923796220).

Almost surely, 2^131667004087 is an apocalyptic number.

131667004087 is a deficient number, since it is larger than the sum of its proper divisors (28180793).

131667004087 is an equidigital number, since it uses as much as digits as its factorization.

131667004087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28180792.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 131667004087 in words is "one hundred thirty-one billion, six hundred sixty-seven million, four thousand, eighty-seven".