131047620025 has 27 divisors (see below), whose sum is σ = 189047783631. Its totient is φ = 89852537040.

The previous prime is 131047620023. The next prime is 131047620029. The reversal of 131047620025 is 520026740131.

The square root of 131047620025 is 362005.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 47177143209 + 83870476816 = 217203^2 + 289604^2 .

It is not a de Polignac number, because 131047620025 - 2¹ = 131047620023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131047620023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12665004 + ... + 12675346.

Almost surely, 2^131047620025 is an apocalyptic number.

131047620025 is the 362005-th square number.

131047620025 is the 181003-rd centered octagonal number.

It is an amenable number.

131047620025 is a deficient number, since it is larger than the sum of its proper divisors (58000163606).

131047620025 is an frugal number, since it uses more digits than its factorization.

131047620025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20710 (or 10355 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 131047620025 in words is "one hundred thirty-one billion, forty-seven million, six hundred twenty thousand, twenty-five".