245926865 has 4 divisors (see below), whose sum is σ = 295112244. Its totient is φ = 196741488.

The previous prime is 245926859. The next prime is 245926867. The reversal of 245926865 is 568629542.

It is a happy number.

245926865 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 166074769 + 79852096 = 12887^2 + 8936^2 .

It is a cyclic number.

It is not a de Polignac number, because 245926865 - 2⁶ = 245926801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245926867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24592682 + ... + 24592691.

It is an arithmetic number, because the mean of its divisors is an integer number (73778061).

Almost surely, 2^245926865 is an apocalyptic number.

It is an amenable number.

245926865 is a deficient number, since it is larger than the sum of its proper divisors (49185379).

245926865 is an equidigital number, since it uses as much as digits as its factorization.

245926865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49185378.

The product of its digits is 1036800, while the sum is 47.

The square root of 245926865 is about 15682.0555094031. The cubic root of 245926865 is about 626.5205557894.

The spelling of 245926865 in words is "two hundred forty-five million, nine hundred twenty-six thousand, eight hundred sixty-five".