199162399 has 2 divisors, whose sum is σ = 199162400. Its totient is φ = 199162398.

The previous prime is 199162373. The next prime is 199162409. The reversal of 199162399 is 993261991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199162399 - 2⁵ = 199162367 is a prime.

It is a super-2 number, since 2×199162399² = 79331322350870402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199162339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99581199 + 99581200.

It is an arithmetic number, because the mean of its divisors is an integer number (99581200).

Almost surely, 2^199162399 is an apocalyptic number.

199162399 is a deficient number, since it is larger than the sum of its proper divisors (1).

199162399 is an equidigital number, since it uses as much as digits as its factorization.

199162399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236196, while the sum is 49.

The square root of 199162399 is about 14112.4908857366. The cubic root of 199162399 is about 583.9860185791.

The spelling of 199162399 in words is "one hundred ninety-nine million, one hundred sixty-two thousand, three hundred ninety-nine".