125858431 has 2 divisors, whose sum is σ = 125858432. Its totient is φ = 125858430.

The previous prime is 125858417. The next prime is 125858437. The reversal of 125858431 is 134858521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125858431 - 2⁵ = 125858399 is a prime.

It is a super-2 number, since 2×125858431² = 31680689307563522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125858437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62929215 + 62929216.

It is an arithmetic number, because the mean of its divisors is an integer number (62929216).

Almost surely, 2^125858431 is an apocalyptic number.

125858431 is a deficient number, since it is larger than the sum of its proper divisors (1).

125858431 is an equidigital number, since it uses as much as digits as its factorization.

125858431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 37.

The square root of 125858431 is about 11218.6644035732. The cubic root of 125858431 is about 501.1419645151.

The spelling of 125858431 in words is "one hundred twenty-five million, eight hundred fifty-eight thousand, four hundred thirty-one".