245122245 has 12 divisors (see below), whose sum is σ = 424878636. Its totient is φ = 130731840.

The previous prime is 245122243. The next prime is 245122259. The reversal of 245122245 is 542221542.

It can be written as a sum of positive squares in 2 ways, for example, as 84162276 + 160959969 = 9174^2 + 12687^2 .

It is not a de Polignac number, because 245122245 - 2¹ = 245122243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245122243) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2723536 + ... + 2723625.

It is an arithmetic number, because the mean of its divisors is an integer number (35406553).

Almost surely, 2^245122245 is an apocalyptic number.

It is an amenable number.

245122245 is a deficient number, since it is larger than the sum of its proper divisors (179756391).

245122245 is a wasteful number, since it uses less digits than its factorization.

245122245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447172 (or 5447169 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 245122245 is about 15656.3803287989. The cubic root of 245122245 is about 625.8365289181.

Adding to 245122245 its reverse (542221542), we get a palindrome (787343787).

The spelling of 245122245 in words is "two hundred forty-five million, one hundred twenty-two thousand, two hundred forty-five".