125645313 has 32 divisors (see below), whose sum is σ = 178214400. Its totient is φ = 78624000.

The previous prime is 125645287. The next prime is 125645321. The reversal of 125645313 is 313546521.

It is not a de Polignac number, because 125645313 - 2⁸ = 125645057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125645323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694083 + ... + 694263.

It is an arithmetic number, because the mean of its divisors is an integer number (5569200).

Almost surely, 2^125645313 is an apocalyptic number.

It is an amenable number.

125645313 is a deficient number, since it is larger than the sum of its proper divisors (52569087).

125645313 is a wasteful number, since it uses less digits than its factorization.

125645313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its digits is 10800, while the sum is 30.

The square root of 125645313 is about 11209.1620114976. The cubic root of 125645313 is about 500.8589409293.

The spelling of 125645313 in words is "one hundred twenty-five million, six hundred forty-five thousand, three hundred thirteen".