125442013 has 8 divisors (see below), whose sum is σ = 128351232. Its totient is φ = 122542896.

The previous prime is 125441993. The next prime is 125442017. The reversal of 125442013 is 310244521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125442013 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 (125442017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26331 + ... + 30727.

It is an arithmetic number, because the mean of its divisors is an integer number (16043904).

Almost surely, 2^125442013 is an apocalyptic number.

It is an amenable number.

125442013 is a deficient number, since it is larger than the sum of its proper divisors (2909219).

125442013 is an equidigital number, since it uses as much as digits as its factorization.

125442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 125442013 is about 11200.0898657109. The cubic root of 125442013 is about 500.5886573597.

Adding to 125442013 its reverse (310244521), we get a palindrome (435686534).

The spelling of 125442013 in words is "one hundred twenty-five million, four hundred forty-two thousand, thirteen".