125053013 has 4 divisors (see below), whose sum is σ = 125447820. Its totient is φ = 124658208.

The previous prime is 125052953. The next prime is 125053031. The reversal of 125053013 is 310350521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3678724 + 121374289 = 1918^2 + 11017^2 .

It is a cyclic number.

It is not a de Polignac number, because 125053013 - 2¹⁴ = 125036629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125053043) 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 3 ways as a sum of consecutive naturals, for example, 196928 + ... + 197561.

It is an arithmetic number, because the mean of its divisors is an integer number (31361955).

Almost surely, 2^125053013 is an apocalyptic number.

It is an amenable number.

125053013 is a deficient number, since it is larger than the sum of its proper divisors (394807).

125053013 is an equidigital number, since it uses as much as digits as its factorization.

125053013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394806.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 125053013 is about 11182.7104496182. The cubic root of 125053013 is about 500.0706740099.

The spelling of 125053013 in words is "one hundred twenty-five million, fifty-three thousand, thirteen".