131561340625 has 48 divisors (see below), whose sum is σ = 193190260032. Its totient is φ = 88320600000.

The previous prime is 131561340569. The next prime is 131561340643. The reversal of 131561340625 is 526043165131.

It is not a de Polignac number, because 131561340625 - 2⁷ = 131561340497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299674 + ... + 594076.

It is an arithmetic number, because the mean of its divisors is an integer number (4024797084).

Almost surely, 2^131561340625 is an apocalyptic number.

It is an amenable number.

131561340625 is a deficient number, since it is larger than the sum of its proper divisors (61628919407).

131561340625 is an equidigital number, since it uses as much as digits as its factorization.

131561340625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294452 (or 294432 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 131561340625 in words is "one hundred thirty-one billion, five hundred sixty-one million, three hundred forty thousand, six hundred twenty-five".