125322531399 has 32 divisors (see below), whose sum is σ = 208638044160. Its totient is φ = 73768441824.

The previous prime is 125322531349. The next prime is 125322531409. The reversal of 125322531399 is 993135223521.

125322531399 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 2 + 253 + 1 + 399 = 666.

It is not a de Polignac number, because 125322531399 - 2¹⁷ = 125322400327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125322531349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7753759 + ... + 7769904.

It is an arithmetic number, because the mean of its divisors is an integer number (6519938880).

Almost surely, 2^125322531399 is an apocalyptic number.

125322531399 is a deficient number, since it is larger than the sum of its proper divisors (83315512761).

125322531399 is a wasteful number, since it uses less digits than its factorization.

125322531399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15523708 (or 15523702 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The spelling of 125322531399 in words is "one hundred twenty-five billion, three hundred twenty-two million, five hundred thirty-one thousand, three hundred ninety-nine".