125530321 has 8 divisors (see below), whose sum is σ = 151014080. Its totient is φ = 101934288.

The previous prime is 125530313. The next prime is 125530331. The reversal of 125530321 is 123035521.

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

It is a cyclic number.

It is not a de Polignac number, because 125530321 - 2³ = 125530313 is a prime.

It is a super-2 number, since 2×125530321² = 31515722980726082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125530292 and 125530301.

It is not an unprimeable number, because it can be changed into a prime (125530331) 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, 471786 + ... + 472051.

It is an arithmetic number, because the mean of its divisors is an integer number (18876760).

Almost surely, 2^125530321 is an apocalyptic number.

It is an amenable number.

125530321 is a deficient number, since it is larger than the sum of its proper divisors (25483759).

125530321 is an equidigital number, since it uses as much as digits as its factorization.

125530321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943863.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 125530321 is about 11204.0314619337. The cubic root of 125530321 is about 500.7060970512.

Adding to 125530321 its reverse (123035521), we get a palindrome (248565842).

The spelling of 125530321 in words is "one hundred twenty-five million, five hundred thirty thousand, three hundred twenty-one".