245009287 has 12 divisors (see below), whose sum is σ = 260927896. Its totient is φ = 230014080.

The previous prime is 245009279. The next prime is 245009291. The reversal of 245009287 is 782900542.

It is not a de Polignac number, because 245009287 - 2³ = 245009279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245009587) 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, 150337 + ... + 151957.

Almost surely, 2^245009287 is an apocalyptic number.

245009287 is a deficient number, since it is larger than the sum of its proper divisors (15918609).

245009287 is a wasteful number, since it uses less digits than its factorization.

245009287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 245009287 is about 15652.7725020202. The cubic root of 245009287 is about 625.7403808316.

The spelling of 245009287 in words is "two hundred forty-five million, nine thousand, two hundred eighty-seven".