131946930025 has 9 divisors (see below), whose sum is σ = 163616445381. Its totient is φ = 105556091040.

The previous prime is 131946929929. The next prime is 131946930131. The reversal of 131946930025 is 520039649131.

It is a happy number.

The square root of 131946930025 is 363245.

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

It can be written as a sum of positive squares in 4 ways, for example, as 18159449049 + 113787480976 = 134757^2 + 337324^2 .

It is not a de Polignac number, because 131946930025 - 2²³ = 131938541417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1779901 + ... + 1852549.

Almost surely, 2^131946930025 is an apocalyptic number.

131946930025 is the 363245-th square number.

131946930025 is the 181623-rd centered octagonal number.

It is an amenable number.

131946930025 is a deficient number, since it is larger than the sum of its proper divisors (31669515356).

131946930025 is an frugal number, since it uses more digits than its factorization.

131946930025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145308 (or 72654 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 131946930025 in words is "one hundred thirty-one billion, nine hundred forty-six million, nine hundred thirty thousand, twenty-five".