125028199 has 2 divisors, whose sum is σ = 125028200. Its totient is φ = 125028198.

The previous prime is 125028181. The next prime is 125028259. The reversal of 125028199 is 991820521.

It is a weak prime.

It is an emirp because it is prime and its reverse (991820521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125028199 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 (125028899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62514099 + 62514100.

It is an arithmetic number, because the mean of its divisors is an integer number (62514100).

Almost surely, 2^125028199 is an apocalyptic number.

125028199 is a deficient number, since it is larger than the sum of its proper divisors (1).

125028199 is an equidigital number, since it uses as much as digits as its factorization.

125028199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 125028199 is about 11181.6009140015. The cubic root of 125028199 is about 500.0375958397.

The spelling of 125028199 in words is "one hundred twenty-five million, twenty-eight thousand, one hundred ninety-nine".