125858399 has 2 divisors, whose sum is σ = 125858400. Its totient is φ = 125858398.

The previous prime is 125858393. The next prime is 125858401. The reversal of 125858399 is 993858521.

It is a strong prime.

It is an emirp because it is prime and its reverse (993858521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125858399 - 2²⁴ = 109081183 is a prime.

Together with 125858401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125858393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62929199 + 62929200.

It is an arithmetic number, because the mean of its divisors is an integer number (62929200).

Almost surely, 2^125858399 is an apocalyptic number.

125858399 is a deficient number, since it is larger than the sum of its proper divisors (1).

125858399 is an equidigital number, since it uses as much as digits as its factorization.

125858399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 50.

The square root of 125858399 is about 11218.6629773784. The cubic root of 125858399 is about 501.1419220427.

The spelling of 125858399 in words is "one hundred twenty-five million, eight hundred fifty-eight thousand, three hundred ninety-nine".