249247107 has 6 divisors (see below), whose sum is σ = 360023612. Its totient is φ = 166164732.

The previous prime is 249247069. The next prime is 249247123. The reversal of 249247107 is 701742942.

It is not a de Polignac number, because 249247107 - 2⁶ = 249247043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249247147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13847053 + ... + 13847070.

Almost surely, 2^249247107 is an apocalyptic number.

249247107 is a deficient number, since it is larger than the sum of its proper divisors (110776505).

249247107 is a wasteful number, since it uses less digits than its factorization.

249247107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27694129 (or 27694126 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 249247107 is about 15787.5617813518. The cubic root of 249247107 is about 629.3274985607.

The spelling of 249247107 in words is "two hundred forty-nine million, two hundred forty-seven thousand, one hundred seven".