131394393877 has 8 divisors (see below), whose sum is σ = 133813935360. Its totient is φ = 128983418160.

The previous prime is 131394393841. The next prime is 131394393913. The reversal of 131394393877 is 778393493131.

It is an interprime number because it is at equal distance from previous prime (131394393841) and next prime (131394393913).

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 131394393877 - 2⁷ = 131394393749 is a prime.

It is a super-2 number, since 2×131394393877² (a number of 23 digits) contains 22 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 (131394393817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2110477 + ... + 2171842.

It is an arithmetic number, because the mean of its divisors is an integer number (16726741920).

Almost surely, 2^131394393877 is an apocalyptic number.

It is an amenable number.

131394393877 is a deficient number, since it is larger than the sum of its proper divisors (2419541483).

131394393877 is an equidigital number, since it uses as much as digits as its factorization.

131394393877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282883.

The product of its digits is 10287648, while the sum is 58.

The spelling of 131394393877 in words is "one hundred thirty-one billion, three hundred ninety-four million, three hundred ninety-three thousand, eight hundred seventy-seven".