131406447707 has 4 divisors (see below), whose sum is σ = 132140562120. Its totient is φ = 130672333296.

The previous prime is 131406447691. The next prime is 131406447709. The reversal of 131406447707 is 707744604131.

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 131406447707 - 2⁴ = 131406447691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131406447709) 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, 367056938 + ... + 367057295.

It is an arithmetic number, because the mean of its divisors is an integer number (33035140530).

Almost surely, 2^131406447707 is an apocalyptic number.

131406447707 is a deficient number, since it is larger than the sum of its proper divisors (734114413).

131406447707 is an equidigital number, since it uses as much as digits as its factorization.

131406447707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734114412.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 131406447707 in words is "one hundred thirty-one billion, four hundred six million, four hundred forty-seven thousand, seven hundred seven".