249215119 has 2 divisors, whose sum is σ = 249215120. Its totient is φ = 249215118.

The previous prime is 249215117. The next prime is 249215173. The reversal of 249215119 is 911512942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249215119 - 2¹ = 249215117 is a prime.

It is a super-2 number, since 2×249215119² = 124216351076368322, which contains 22 as substring.

Together with 249215117, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249215117) 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, 124607559 + 124607560.

It is an arithmetic number, because the mean of its divisors is an integer number (124607560).

Almost surely, 2^249215119 is an apocalyptic number.

249215119 is a deficient number, since it is larger than the sum of its proper divisors (1).

249215119 is an equidigital number, since it uses as much as digits as its factorization.

249215119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 34.

The square root of 249215119 is about 15786.5486728417. The cubic root of 249215119 is about 629.3005750930.

The spelling of 249215119 in words is "two hundred forty-nine million, two hundred fifteen thousand, one hundred nineteen".