213499199 has 2 divisors, whose sum is σ = 213499200. Its totient is φ = 213499198.

The previous prime is 213499129. The next prime is 213499241. The reversal of 213499199 is 991994312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213499199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213499129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106749599 + 106749600.

It is an arithmetic number, because the mean of its divisors is an integer number (106749600).

Almost surely, 2^213499199 is an apocalyptic number.

213499199 is a deficient number, since it is larger than the sum of its proper divisors (1).

213499199 is an equidigital number, since it uses as much as digits as its factorization.

213499199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 47.

The square root of 213499199 is about 14611.6117865210. The cubic root of 213499199 is about 597.6754492553.

The spelling of 213499199 in words is "two hundred thirteen million, four hundred ninety-nine thousand, one hundred ninety-nine".