125868199 has 2 divisors, whose sum is σ = 125868200. Its totient is φ = 125868198.

The previous prime is 125868157. The next prime is 125868203. The reversal of 125868199 is 991868521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125868199 - 2¹¹ = 125866151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125868109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62934099 + 62934100.

It is an arithmetic number, because the mean of its divisors is an integer number (62934100).

Almost surely, 2^125868199 is an apocalyptic number.

125868199 is a deficient number, since it is larger than the sum of its proper divisors (1).

125868199 is an equidigital number, since it uses as much as digits as its factorization.

125868199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 49.

The square root of 125868199 is about 11219.0997410666. The cubic root of 125868199 is about 501.1549288912.

The spelling of 125868199 in words is "one hundred twenty-five million, eight hundred sixty-eight thousand, one hundred ninety-nine".