249238111 has 12 divisors (see below), whose sum is σ = 255083400. Its totient is φ = 243501440.

The previous prime is 249238081. The next prime is 249238117. The reversal of 249238111 is 111832942.

It is not a de Polignac number, because 249238111 - 2¹⁵ = 249205343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249238117) 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 in 11 ways as a sum of consecutive naturals, for example, 1672665 + ... + 1672813.

It is an arithmetic number, because the mean of its divisors is an integer number (21256950).

Almost surely, 2^249238111 is an apocalyptic number.

249238111 is a deficient number, since it is larger than the sum of its proper divisors (5845289).

249238111 is a wasteful number, since it uses less digits than its factorization.

249238111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 393 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 249238111 is about 15787.2768709490. The cubic root of 249238111 is about 629.3199270943.

The spelling of 249238111 in words is "two hundred forty-nine million, two hundred thirty-eight thousand, one hundred eleven".