125122321 has 2 divisors, whose sum is σ = 125122322. Its totient is φ = 125122320.

The previous prime is 125122289. The next prime is 125122331. The reversal of 125122321 is 123221521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111513600 + 13608721 = 10560^2 + 3689^2 .

It is a cyclic number.

It is not a de Polignac number, because 125122321 - 2⁵ = 125122289 is a prime.

It is not a weakly prime, because it can be changed into another prime (125122331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62561160 + 62561161.

It is an arithmetic number, because the mean of its divisors is an integer number (62561161).

Almost surely, 2^125122321 is an apocalyptic number.

It is an amenable number.

125122321 is a deficient number, since it is larger than the sum of its proper divisors (1).

125122321 is an equidigital number, since it uses as much as digits as its factorization.

125122321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 125122321 is about 11185.8089112947. The cubic root of 125122321 is about 500.1630414958.

Adding to 125122321 its reverse (123221521), we get a palindrome (248343842).

The spelling of 125122321 in words is "one hundred twenty-five million, one hundred twenty-two thousand, three hundred twenty-one".