99745199 has 2 divisors, whose sum is σ = 99745200. Its totient is φ = 99745198.

The previous prime is 99745189. The next prime is 99745201. The reversal of 99745199 is 99154799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99745199 - 2²⁰ = 98696623 is a prime.

Together with 99745201, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99745199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99745109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49872599 + 49872600.

It is an arithmetic number, because the mean of its divisors is an integer number (49872600).

Almost surely, 2^99745199 is an apocalyptic number.

99745199 is a deficient number, since it is larger than the sum of its proper divisors (1).

99745199 is an equidigital number, since it uses as much as digits as its factorization.

99745199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 53.

The square root of 99745199 is about 9987.2518242007. The cubic root of 99745199 is about 463.7643208961.

The spelling of 99745199 in words is "ninety-nine million, seven hundred forty-five thousand, one hundred ninety-nine".