245854845 has 20 divisors (see below), whose sum is σ = 440718300. Its totient is φ = 131122368.

The previous prime is 245854793. The next prime is 245854853. The reversal of 245854845 is 548458542.

245854845 is a `hidden beast` number, since 24 + 585 + 4 + 8 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 57972996 + 187881849 = 7614^2 + 13707^2 .

It is not a de Polignac number, because 245854845 - 2¹⁵ = 245822077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 245854845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 303120 + ... + 303929.

It is an arithmetic number, because the mean of its divisors is an integer number (22035915).

Almost surely, 2^245854845 is an apocalyptic number.

It is an amenable number.

245854845 is a deficient number, since it is larger than the sum of its proper divisors (194863455).

245854845 is an equidigital number, since it uses as much as digits as its factorization.

245854845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607066 (or 607057 counting only the distinct ones).

The product of its digits is 1024000, while the sum is 45.

The square root of 245854845 is about 15679.7590861595. The cubic root of 245854845 is about 626.4593907004.

The spelling of 245854845 in words is "two hundred forty-five million, eight hundred fifty-four thousand, eight hundred forty-five".