131406574231 has 4 divisors (see below), whose sum is σ = 131409633312. Its totient is φ = 131403515152.

The previous prime is 131406574223. The next prime is 131406574237. The reversal of 131406574231 is 132475604131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131406574231 - 2³ = 131406574223 is a prime.

It is a super-2 number, since 2×131406574231² (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 (131406574237) 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 3 ways as a sum of consecutive naturals, for example, 1464175 + ... + 1551328.

It is an arithmetic number, because the mean of its divisors is an integer number (32852408328).

Almost surely, 2^131406574231 is an apocalyptic number.

131406574231 is a deficient number, since it is larger than the sum of its proper divisors (3059081).

131406574231 is an equidigital number, since it uses as much as digits as its factorization.

131406574231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059080.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 131406574231 in words is "one hundred thirty-one billion, four hundred six million, five hundred seventy-four thousand, two hundred thirty-one".