249828199 has 2 divisors, whose sum is σ = 249828200. Its totient is φ = 249828198.

The previous prime is 249828179. The next prime is 249828217. The reversal of 249828199 is 991828942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249828199 - 2⁹ = 249827687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249828179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124914099 + 124914100.

It is an arithmetic number, because the mean of its divisors is an integer number (124914100).

Almost surely, 2^249828199 is an apocalyptic number.

249828199 is a deficient number, since it is larger than the sum of its proper divisors (1).

249828199 is an equidigital number, since it uses as much as digits as its factorization.

249828199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 52.

The square root of 249828199 is about 15805.9545425134. The cubic root of 249828199 is about 629.8161880819.

The spelling of 249828199 in words is "two hundred forty-nine million, eight hundred twenty-eight thousand, one hundred ninety-nine".