125234424257 has 2 divisors, whose sum is σ = 125234424258. Its totient is φ = 125234424256.

The previous prime is 125234424251. The next prime is 125234424349. The reversal of 125234424257 is 752424432521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79729428496 + 45504995761 = 282364^2 + 213319^2 .

It is a cyclic number.

It is not a de Polignac number, because 125234424257 - 2⁶ = 125234424193 is a prime.

It is a super-2 number, since 2×125234424257² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125234424251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62617212128 + 62617212129.

It is an arithmetic number, because the mean of its divisors is an integer number (62617212129).

Almost surely, 2^125234424257 is an apocalyptic number.

It is an amenable number.

125234424257 is a deficient number, since it is larger than the sum of its proper divisors (1).

125234424257 is an equidigital number, since it uses as much as digits as its factorization.

125234424257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537600, while the sum is 41.

Adding to 125234424257 its reverse (752424432521), we get a palindrome (877658856778).

The spelling of 125234424257 in words is "one hundred twenty-five billion, two hundred thirty-four million, four hundred twenty-four thousand, two hundred fifty-seven".