249287283 has 12 divisors (see below), whose sum is σ = 411521968. Its totient is φ = 142449840.

The previous prime is 249287273. The next prime is 249287293. The reversal of 249287283 is 382782942.

249287283 is a `hidden beast` number, since 2 + 492 + 87 + 2 + 83 = 666.

It is an interprime number because it is at equal distance from previous prime (249287273) and next prime (249287293).

It is not a de Polignac number, because 249287283 - 2²² = 245092979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249287273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1978408 + ... + 1978533.

Almost surely, 2^249287283 is an apocalyptic number.

249287283 is a deficient number, since it is larger than the sum of its proper divisors (162234685).

249287283 is a wasteful number, since it uses less digits than its factorization.

249287283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956954 (or 3956951 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 249287283 is about 15788.8341241524. The cubic root of 249287283 is about 629.3613103917.

The spelling of 249287283 in words is "two hundred forty-nine million, two hundred eighty-seven thousand, two hundred eighty-three".