131402505323225 has 24 divisors (see below), whose sum is σ = 166966922313240. Its totient is φ = 102525062976000.

The previous prime is 131402505323197. The next prime is 131402505323231. The reversal of 131402505323225 is 522323505204131.

It can be written as a sum of positive squares in 12 ways, for example, as 112307938831936 + 19094566491289 = 10597544^2 + 4369733^2 .

It is not a de Polignac number, because 131402505323225 - 2²⁴ = 131402488546009 is a prime.

It is a super-4 number, since 4×131402505323225⁴ (a number of 58 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17430446 + ... + 23803895.

It is an arithmetic number, because the mean of its divisors is an integer number (6956955096385).

Almost surely, 2^{131402505323225} is an apocalyptic number.

It is an amenable number.

131402505323225 is a deficient number, since it is larger than the sum of its proper divisors (35564416990015).

131402505323225 is a wasteful number, since it uses less digits than its factorization.

131402505323225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41237501 (or 41237496 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 131402505323225 in words is "one hundred thirty-one trillion, four hundred two billion, five hundred five million, three hundred twenty-three thousand, two hundred twenty-five".