280313265 has 16 divisors (see below), whose sum is σ = 448725888. Its totient is φ = 149425536.

The previous prime is 280313233. The next prime is 280313281. The reversal of 280313265 is 562313082.

It is not a de Polignac number, because 280313265 - 2⁵ = 280313233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40069 + ... + 46541.

It is an arithmetic number, because the mean of its divisors is an integer number (28045368).

Almost surely, 2^280313265 is an apocalyptic number.

It is an amenable number.

280313265 is a deficient number, since it is larger than the sum of its proper divisors (168412623).

280313265 is a wasteful number, since it uses less digits than its factorization.

280313265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9368.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 280313265 is about 16742.5584962395. The cubic root of 280313265 is about 654.4571498175.

The spelling of 280313265 in words is "two hundred eighty million, three hundred thirteen thousand, two hundred sixty-five".