245844105 has 64 divisors (see below), whose sum is σ = 444530688. Its totient is φ = 115188480.

The previous prime is 245844083. The next prime is 245844133. The reversal of 245844105 is 501448542.

It is a happy number.

It is not a de Polignac number, because 245844105 - 2⁵ = 245844073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 404712 + ... + 405318.

It is an arithmetic number, because the mean of its divisors is an integer number (6945792).

Almost surely, 2^245844105 is an apocalyptic number.

It is an amenable number.

245844105 is a deficient number, since it is larger than the sum of its proper divisors (198686583).

245844105 is a wasteful number, since it uses less digits than its factorization.

245844105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 245844105 is about 15679.4166026673. The cubic root of 245844105 is about 626.4502684182.

It can be divided in two parts, 245 and 844105, that added together give a triangular number (844350 = T₁₂₉₉).

The spelling of 245844105 in words is "two hundred forty-five million, eight hundred forty-four thousand, one hundred five".