245208465 has 40 divisors (see below), whose sum is σ = 440731368. Its totient is φ = 130429440.

The previous prime is 245208449. The next prime is 245208487. The reversal of 245208465 is 564802542.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40947201 + 204261264 = 6399^2 + 14292^2 .

It is not a de Polignac number, because 245208465 - 2⁴ = 245208449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 239655 + ... + 240675.

Almost surely, 2^245208465 is an apocalyptic number.

It is an amenable number.

245208465 is a deficient number, since it is larger than the sum of its proper divisors (195522903).

245208465 is a wasteful number, since it uses less digits than its factorization.

245208465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 245208465 is about 15659.1335967224. The cubic root of 245208465 is about 625.9098981604.

The spelling of 245208465 in words is "two hundred forty-five million, two hundred eight thousand, four hundred sixty-five".