249934999 has 2 divisors, whose sum is σ = 249935000. Its totient is φ = 249934998.

The previous prime is 249934931. The next prime is 249935027. The reversal of 249934999 is 999439942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249934999 - 2¹⁷ = 249803927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249937999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124967499 + 124967500.

It is an arithmetic number, because the mean of its divisors is an integer number (124967500).

Almost surely, 2^249934999 is an apocalyptic number.

249934999 is a deficient number, since it is larger than the sum of its proper divisors (1).

249934999 is an equidigital number, since it uses as much as digits as its factorization.

249934999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5668704, while the sum is 58.

The square root of 249934999 is about 15809.3326551123. The cubic root of 249934999 is about 629.9059227961.

It can be divided in two parts, 24993 and 4999, that added together give a palindrome (29992).

The spelling of 249934999 in words is "two hundred forty-nine million, nine hundred thirty-four thousand, nine hundred ninety-nine".