131274456691 has 8 divisors (see below), whose sum is σ = 150082468704. Its totient is φ = 112480074240.

The previous prime is 131274456647. The next prime is 131274456701. The reversal of 131274456691 is 196654472131.

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 131274456691 - 2⁹ = 131274456179 is a prime.

It is a super-4 number, since 4×131274456691⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (131274450691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3386740 + ... + 3425281.

It is an arithmetic number, because the mean of its divisors is an integer number (18760308588).

Almost surely, 2^131274456691 is an apocalyptic number.

131274456691 is a deficient number, since it is larger than the sum of its proper divisors (18808012013).

131274456691 is an equidigital number, since it uses as much as digits as its factorization.

131274456691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814781.

The product of its digits is 1088640, while the sum is 49.

The spelling of 131274456691 in words is "one hundred thirty-one billion, two hundred seventy-four million, four hundred fifty-six thousand, six hundred ninety-one".