125444321 has 4 divisors (see below), whose sum is σ = 129490944. Its totient is φ = 121397700.

The previous prime is 125444299. The next prime is 125444329. The reversal of 125444321 is 123444521.

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 125444321 - 2⁶ = 125444257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125444329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2023265 + ... + 2023326.

It is an arithmetic number, because the mean of its divisors is an integer number (32372736).

Almost surely, 2^125444321 is an apocalyptic number.

It is an amenable number.

125444321 is a deficient number, since it is larger than the sum of its proper divisors (4046623).

125444321 is an equidigital number, since it uses as much as digits as its factorization.

125444321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046622.

The product of its digits is 3840, while the sum is 26.

The square root of 125444321 is about 11200.1929001245. The cubic root of 125444321 is about 500.5917274410.

Adding to 125444321 its reverse (123444521), we get a palindrome (248888842).

The spelling of 125444321 in words is "one hundred twenty-five million, four hundred forty-four thousand, three hundred twenty-one".