245805122 has 8 divisors (see below), whose sum is σ = 368876172. Its totient is φ = 122846400.

The previous prime is 245805121. The next prime is 245805139. The reversal of 245805122 is 221508542.

245805122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 244640881 + 1164241 = 15641^2 + 1079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (245805121) 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, 22379 + ... + 31502.

Almost surely, 2^245805122 is an apocalyptic number.

245805122 is a deficient number, since it is larger than the sum of its proper divisors (123071050).

245805122 is a wasteful number, since it uses less digits than its factorization.

245805122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56164.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 245805122 is about 15678.1734267739. The cubic root of 245805122 is about 626.4171550193.

The spelling of 245805122 in words is "two hundred forty-five million, eight hundred five thousand, one hundred twenty-two".