245236230565 has 4 divisors (see below), whose sum is σ = 294283476684. Its totient is φ = 196188984448.

The previous prime is 245236230559. The next prime is 245236230571. The reversal of 245236230565 is 565032632542.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (245236230559) and next prime (245236230571).

It can be written as a sum of positive squares in 2 ways, for example, as 99531416196 + 145704814369 = 315486^2 + 381713^2 .

It is a cyclic number.

It is not a de Polignac number, because 245236230565 - 2⁹ = 245236230053 is a prime.

It is a Duffinian number.

It is a congruent 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, 24523623052 + ... + 24523623061.

It is an arithmetic number, because the mean of its divisors is an integer number (73570869171).

Almost surely, 2^245236230565 is an apocalyptic number.

It is an amenable number.

245236230565 is a deficient number, since it is larger than the sum of its proper divisors (49047246119).

245236230565 is an equidigital number, since it uses as much as digits as its factorization.

245236230565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49047246118.

The product of its (nonzero) digits is 1296000, while the sum is 43.

The spelling of 245236230565 in words is "two hundred forty-five billion, two hundred thirty-six million, two hundred thirty thousand, five hundred sixty-five".