245329569 has 27 divisors (see below), whose sum is σ = 372081073. Its totient is φ = 155752872.

The previous prime is 245329547. The next prime is 245329619. The reversal of 245329569 is 965923542.

The square root of 245329569 is 15663.

It is a perfect power (a square), and thus also a powerful number.

245329569 is a `hidden beast` number, since 24 + 532 + 95 + 6 + 9 = 666.

It is not a de Polignac number, because 245329569 - 2⁵ = 245329537 is a prime.

It is a super-2 number, since 2×245329569² = 120373194851451522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245329769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1080634 + ... + 1080860.

Almost surely, 2^245329569 is an apocalyptic number.

245329569 is the 15663-rd square number.

245329569 is the 7832-nd centered octagonal number.

It is an amenable number.

245329569 is a deficient number, since it is larger than the sum of its proper divisors (126751504).

245329569 is an equidigital number, since it uses as much as digits as its factorization.

245329569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 253 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The cubic root of 245329569 is about 626.0129230389.

The spelling of 245329569 in words is "two hundred forty-five million, three hundred twenty-nine thousand, five hundred sixty-nine".