125030321 has 8 divisors (see below), whose sum is σ = 135138024. Its totient is φ = 114992640.

The previous prime is 125030309. The next prime is 125030329. The reversal of 125030321 is 123030521.

It can be written as a sum of positive squares in 4 ways, for example, as 462400 + 124567921 = 680^2 + 11161^2 .

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-125030321 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125030321.

It is not an unprimeable number, because it can be changed into a prime (125030329) 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, 13760 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (16892253).

Almost surely, 2^125030321 is an apocalyptic number.

It is an amenable number.

125030321 is a deficient number, since it is larger than the sum of its proper divisors (10107703).

125030321 is a wasteful number, since it uses less digits than its factorization.

125030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35011.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 125030321 is about 11181.6958016215. The cubic root of 125030321 is about 500.0404247316.

Adding to 125030321 its reverse (123030521), we get a palindrome (248060842).

The spelling of 125030321 in words is "one hundred twenty-five million, thirty thousand, three hundred twenty-one".