245122155 has 48 divisors (see below), whose sum is σ = 452874240. Its totient is φ = 122362944.

The previous prime is 245122147. The next prime is 245122183. The reversal of 245122155 is 551221542.

245122155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245122155 - 2³ = 245122147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46126 + ... + 51164.

It is an arithmetic number, because the mean of its divisors is an integer number (9434880).

Almost surely, 2^245122155 is an apocalyptic number.

245122155 is a deficient number, since it is larger than the sum of its proper divisors (207752085).

245122155 is a wasteful number, since it uses less digits than its factorization.

245122155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120 (or 5117 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 245122155 is about 15656.3774545710. The cubic root of 245122155 is about 625.8364523233.

Adding to 245122155 its reverse (551221542), we get a palindrome (796343697).

The spelling of 245122155 in words is "two hundred forty-five million, one hundred twenty-two thousand, one hundred fifty-five".