245300665 has 4 divisors (see below), whose sum is σ = 294360804. Its totient is φ = 196240528.

The previous prime is 245300569. The next prime is 245300719. The reversal of 245300665 is 566003542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36324729 + 208975936 = 6027^2 + 14456^2 .

It is a cyclic number.

It is not a de Polignac number, because 245300665 - 2¹⁷ = 245169593 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24530062 + ... + 24530071.

It is an arithmetic number, because the mean of its divisors is an integer number (73590201).

Almost surely, 2^245300665 is an apocalyptic number.

It is an amenable number.

245300665 is a deficient number, since it is larger than the sum of its proper divisors (49060139).

245300665 is an equidigital number, since it uses as much as digits as its factorization.

245300665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49060138.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 245300665 is about 15662.0772887890. The cubic root of 245300665 is about 625.9883370799.

The spelling of 245300665 in words is "two hundred forty-five million, three hundred thousand, six hundred sixty-five".