125405313 has 16 divisors (see below), whose sum is σ = 184910016. Its totient is φ = 74960640.

The previous prime is 125405303. The next prime is 125405327. The reversal of 125405313 is 313504521.

It is not a de Polignac number, because 125405313 - 2⁴ = 125405297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125405303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23620 + ... + 28437.

It is an arithmetic number, because the mean of its divisors is an integer number (11556876).

Almost surely, 2^125405313 is an apocalyptic number.

It is an amenable number.

125405313 is a deficient number, since it is larger than the sum of its proper divisors (59504703).

125405313 is a wasteful number, since it uses less digits than its factorization.

125405313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52144.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 125405313 is about 11198.4513661488. The cubic root of 125405313 is about 500.5398342815.

Adding to 125405313 its reverse (313504521), we get a palindrome (438909834).

The spelling of 125405313 in words is "one hundred twenty-five million, four hundred five thousand, three hundred thirteen".