125630213 has 4 divisors (see below), whose sum is σ = 125816460. Its totient is φ = 125443968.

The previous prime is 125630203. The next prime is 125630237. The reversal of 125630213 is 312036521.

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 90973444 + 34656769 = 9538^2 + 5887^2 .

It is a cyclic number.

It is not a de Polignac number, because 125630213 - 2¹² = 125626117 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 (125630203) 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, 92108 + ... + 93461.

It is an arithmetic number, because the mean of its divisors is an integer number (31454115).

Almost surely, 2^125630213 is an apocalyptic number.

It is an amenable number.

125630213 is a deficient number, since it is larger than the sum of its proper divisors (186247).

125630213 is an equidigital number, since it uses as much as digits as its factorization.

125630213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186246.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 125630213 is about 11208.4884351102. The cubic root of 125630213 is about 500.8388757877.

Adding to 125630213 its reverse (312036521), we get a palindrome (437666734).

The spelling of 125630213 in words is "one hundred twenty-five million, six hundred thirty thousand, two hundred thirteen".