249247254 has 16 divisors (see below), whose sum is σ = 514575360. Its totient is φ = 80402280.

The previous prime is 249247231. The next prime is 249247277. The reversal of 249247254 is 452742942.

It is an interprime number because it is at equal distance from previous prime (249247231) and next prime (249247277).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669834 + ... + 670205.

It is an arithmetic number, because the mean of its divisors is an integer number (32160960).

Almost surely, 2^249247254 is an apocalyptic number.

249247254 is an abundant number, since it is smaller than the sum of its proper divisors (265328106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249247254 is a wasteful number, since it uses less digits than its factorization.

249247254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340075.

The product of its digits is 161280, while the sum is 39.

The square root of 249247254 is about 15787.5664369148. The cubic root of 249247254 is about 629.3276222814.

The spelling of 249247254 in words is "two hundred forty-nine million, two hundred forty-seven thousand, two hundred fifty-four".