99994123 has 2 divisors, whose sum is σ = 99994124. Its totient is φ = 99994122.

The previous prime is 99994079. The next prime is 99994129. The reversal of 99994123 is 32149999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99994123 - 2⁹ = 99993611 is a prime.

It is not a weakly prime, because it can be changed into another prime (99994129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997061 + 49997062.

It is an arithmetic number, because the mean of its divisors is an integer number (49997062).

Almost surely, 2^99994123 is an apocalyptic number.

99994123 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994123 is an equidigital number, since it uses as much as digits as its factorization.

99994123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 46.

The square root of 99994123 is about 9999.7061456825. The cubic root of 99994123 is about 464.1497903106.

The spelling of 99994123 in words is "ninety-nine million, nine hundred ninety-four thousand, one hundred twenty-three".