125239213 has 4 divisors (see below), whose sum is σ = 136624608. Its totient is φ = 113853820.

The previous prime is 125239207. The next prime is 125239217. The reversal of 125239213 is 312932521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125239213 - 2⁵ = 125239181 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 (125239217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5692681 + ... + 5692702.

It is an arithmetic number, because the mean of its divisors is an integer number (34156152).

Almost surely, 2^125239213 is an apocalyptic number.

It is an amenable number.

125239213 is a deficient number, since it is larger than the sum of its proper divisors (11385395).

125239213 is a wasteful number, since it uses less digits than its factorization.

125239213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11385394.

The product of its digits is 3240, while the sum is 28.

The square root of 125239213 is about 11191.0327048043. The cubic root of 125239213 is about 500.3187474236.

It can be divided in two parts, 12523 and 9213, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 125239213 in words is "one hundred twenty-five million, two hundred thirty-nine thousand, two hundred thirteen".