245042065 has 4 divisors (see below), whose sum is σ = 294050484. Its totient is φ = 196033648.

The previous prime is 245042041. The next prime is 245042081. The reversal of 245042065 is 560240542.

245042065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33281361 + 211760704 = 5769^2 + 14552^2 .

It is a cyclic number.

It is not a de Polignac number, because 245042065 - 2²³ = 236653457 is a prime.

It is a super-2 number, since 2×245042065² = 120091227238928450, which contains 22 as substring.

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, 24504202 + ... + 24504211.

It is an arithmetic number, because the mean of its divisors is an integer number (73512621).

Almost surely, 2^245042065 is an apocalyptic number.

It is an amenable number.

245042065 is a deficient number, since it is larger than the sum of its proper divisors (49008419).

245042065 is an equidigital number, since it uses as much as digits as its factorization.

245042065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49008418.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 245042065 is about 15653.8195019618. The cubic root of 245042065 is about 625.7682839965.

It can be divided in two parts, 24504 and 2065, that added together give a square (26569 = 163²).

The spelling of 245042065 in words is "two hundred forty-five million, forty-two thousand, sixty-five".