245444245 has 8 divisors (see below), whose sum is σ = 301717080. Its totient is φ = 191566080.

The previous prime is 245444233. The next prime is 245444257. The reversal of 245444245 is 542444542.

245444245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (245444233) and next prime (245444257).

It can be written as a sum of positive squares in 4 ways, for example, as 25633969 + 219810276 = 5063^2 + 14826^2 .

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

It is not a de Polignac number, because 245444245 - 2⁷ = 245444117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245444245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598440 + ... + 598849.

It is an arithmetic number, because the mean of its divisors is an integer number (37714635).

Almost surely, 2^245444245 is an apocalyptic number.

It is an amenable number.

245444245 is a deficient number, since it is larger than the sum of its proper divisors (56272835).

245444245 is a wasteful number, since it uses less digits than its factorization.

245444245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197335.

The product of its digits is 102400, while the sum is 34.

The square root of 245444245 is about 15666.6603014171. The cubic root of 245444245 is about 626.1104482789.

Adding to 245444245 its reverse (542444542), we get a palindrome (787888787).

The spelling of 245444245 in words is "two hundred forty-five million, four hundred forty-four thousand, two hundred forty-five".