99813127 has 2 divisors, whose sum is σ = 99813128. Its totient is φ = 99813126.

The previous prime is 99813113. The next prime is 99813139. The reversal of 99813127 is 72131899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99813127 - 2¹¹ = 99811079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99813127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99813107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49906563 + 49906564.

It is an arithmetic number, because the mean of its divisors is an integer number (49906564).

Almost surely, 2^99813127 is an apocalyptic number.

99813127 is a deficient number, since it is larger than the sum of its proper divisors (1).

99813127 is an equidigital number, since it uses as much as digits as its factorization.

99813127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 40.

The square root of 99813127 is about 9990.6519807268. The cubic root of 99813127 is about 463.8695738626.

The spelling of 99813127 in words is "ninety-nine million, eight hundred thirteen thousand, one hundred twenty-seven".