125973251 has 2 divisors, whose sum is σ = 125973252. Its totient is φ = 125973250.

The previous prime is 125973193. The next prime is 125973257. The reversal of 125973251 is 152379521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125973251 is a prime.

It is not a weakly prime, because it can be changed into another prime (125973257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62986625 + 62986626.

It is an arithmetic number, because the mean of its divisors is an integer number (62986626).

Almost surely, 2^125973251 is an apocalyptic number.

125973251 is a deficient number, since it is larger than the sum of its proper divisors (1).

125973251 is an equidigital number, since it uses as much as digits as its factorization.

125973251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 125973251 is about 11223.7806019184. The cubic root of 125973251 is about 501.2943146083.

The spelling of 125973251 in words is "one hundred twenty-five million, nine hundred seventy-three thousand, two hundred fifty-one".