249135916 has 12 divisors (see below), whose sum is σ = 438509232. Its totient is φ = 123847568.

The previous prime is 249135907. The next prime is 249135941. The reversal of 249135916 is 619531942.

249135916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179320 + ... + 180703.

It is an arithmetic number, because the mean of its divisors is an integer number (36542436).

Almost surely, 2^249135916 is an apocalyptic number.

It is an amenable number.

249135916 is a deficient number, since it is larger than the sum of its proper divisors (189373316).

249135916 is a wasteful number, since it uses less digits than its factorization.

249135916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360200 (or 360198 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 249135916 is about 15784.0399137863. The cubic root of 249135916 is about 629.2339020721.

The spelling of 249135916 in words is "two hundred forty-nine million, one hundred thirty-five thousand, nine hundred sixteen".