131561298407 has 16 divisors (see below), whose sum is σ = 164062001664. Its totient is φ = 102491844000.

The previous prime is 131561298299. The next prime is 131561298433. The reversal of 131561298407 is 704892165131.

It is not a de Polignac number, because 131561298407 - 2⁸ = 131561298151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131561298467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147182 + ... + 533652.

It is an arithmetic number, because the mean of its divisors is an integer number (10253875104).

It is a 1-persistent number, because it is pandigital, but 2⋅131561298407 = 263122596814 is not.

Almost surely, 2^131561298407 is an apocalyptic number.

131561298407 is a deficient number, since it is larger than the sum of its proper divisors (32500703257).

131561298407 is a wasteful number, since it uses less digits than its factorization.

131561298407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390910.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 131561298407 in words is "one hundred thirty-one billion, five hundred sixty-one million, two hundred ninety-eight thousand, four hundred seven".