125103213 has 6 divisors (see below), whose sum is σ = 180704654. Its totient is φ = 83402136.

The previous prime is 125103203. The next prime is 125103217. The reversal of 125103213 is 312301521.

It can be written as a sum of positive squares in only one way, i.e., 116704809 + 8398404 = 10803^2 + 2898^2 .

It is not a de Polignac number, because 125103213 - 2⁶ = 125103149 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 (125103217) 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 5 ways as a sum of consecutive naturals, for example, 6950170 + ... + 6950187.

Almost surely, 2^125103213 is an apocalyptic number.

It is an amenable number.

125103213 is a deficient number, since it is larger than the sum of its proper divisors (55601441).

125103213 is a wasteful number, since it uses less digits than its factorization.

125103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13900363 (or 13900360 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 125103213 is about 11184.9547607489. The cubic root of 125103213 is about 500.1375794736.

Adding to 125103213 its reverse (312301521), we get a palindrome (437404734).

It can be divided in two parts, 125103 and 213, that added together give a square (125316 = 354²).

The spelling of 125103213 in words is "one hundred twenty-five million, one hundred three thousand, two hundred thirteen".