125434321 has 2 divisors, whose sum is σ = 125434322. Its totient is φ = 125434320.

The previous prime is 125434307. The next prime is 125434357. The reversal of 125434321 is 123434521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108910096 + 16524225 = 10436^2 + 4065^2 .

It is a cyclic number.

It is not a de Polignac number, because 125434321 - 2⁹ = 125433809 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (125434301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62717160 + 62717161.

It is an arithmetic number, because the mean of its divisors is an integer number (62717161).

Almost surely, 2^125434321 is an apocalyptic number.

It is an amenable number.

125434321 is a deficient number, since it is larger than the sum of its proper divisors (1).

125434321 is an equidigital number, since it uses as much as digits as its factorization.

125434321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 125434321 is about 11199.7464703448. The cubic root of 125434321 is about 500.5784252571.

Adding to 125434321 its reverse (123434521), we get a palindrome (248868842).

The spelling of 125434321 in words is "one hundred twenty-five million, four hundred thirty-four thousand, three hundred twenty-one".