245244985 has 16 divisors (see below), whose sum is σ = 302415120. Its totient is φ = 190812160.

The previous prime is 245244931. The next prime is 245245019. The reversal of 245244985 is 589442542.

245244985 is digitally balanced in base 2, 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 8 ways, for example, as 2134521 + 243110464 = 1461^2 + 15592^2 .

It is not a de Polignac number, because 245244985 - 2¹³ = 245236793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70671 + ... + 74059.

It is an arithmetic number, because the mean of its divisors is an integer number (18900945).

Almost surely, 2^245244985 is an apocalyptic number.

It is an amenable number.

245244985 is a deficient number, since it is larger than the sum of its proper divisors (57170135).

245244985 is a wasteful number, since it uses less digits than its factorization.

245244985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788.

The product of its digits is 460800, while the sum is 43.

The square root of 245244985 is about 15660.2996459199. The cubic root of 245244985 is about 625.9409698103.

The spelling of 245244985 in words is "two hundred forty-five million, two hundred forty-four thousand, nine hundred eighty-five".