99125399 has 2 divisors, whose sum is σ = 99125400. Its totient is φ = 99125398.

The previous prime is 99125359. The next prime is 99125401. The reversal of 99125399 is 99352199.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99125399 is a prime.

It is a Sophie Germain prime.

Together with 99125401, 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 (99125359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49562699 + 49562700.

It is an arithmetic number, because the mean of its divisors is an integer number (49562700).

Almost surely, 2^99125399 is an apocalyptic number.

99125399 is a deficient number, since it is larger than the sum of its proper divisors (1).

99125399 is an equidigital number, since it uses as much as digits as its factorization.

99125399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196830, while the sum is 47.

The square root of 99125399 is about 9956.1739137080. The cubic root of 99125399 is about 462.8017396952.

The spelling of 99125399 in words is "ninety-nine million, one hundred twenty-five thousand, three hundred ninety-nine".