125210013 has 4 divisors (see below), whose sum is σ = 166946688. Its totient is φ = 83473340.

The previous prime is 125210011. The next prime is 125210017. The reversal of 125210013 is 310012521.

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 125210013 - 2¹ = 125210011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125209974 and 125210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125210011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20868333 + ... + 20868338.

It is an arithmetic number, because the mean of its divisors is an integer number (41736672).

Almost surely, 2^125210013 is an apocalyptic number.

It is an amenable number.

125210013 is a deficient number, since it is larger than the sum of its proper divisors (41736675).

125210013 is an equidigital number, since it uses as much as digits as its factorization.

125210013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41736674.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 125210013 is about 11189.7280127803. The cubic root of 125210013 is about 500.2798606601.

Adding to 125210013 its reverse (310012521), we get a palindrome (435222534).

The spelling of 125210013 in words is "one hundred twenty-five million, two hundred ten thousand, thirteen".