122315245 has 16 divisors (see below), whose sum is σ = 158422320. Its totient is φ = 90123264.

The previous prime is 122315227. The next prime is 122315257. The reversal of 122315245 is 542513221.

It can be written as a sum of positive squares in 8 ways, for example, as 13446889 + 108868356 = 3667^2 + 10434^2 .

It is a cyclic number.

It is not a de Polignac number, because 122315245 - 2⁵ = 122315213 is a prime.

It is a super-2 number, since 2×122315245² = 29922038318820050, which contains 22 as substring.

It is a congruent number.

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, 31237 + ... + 34933.

It is an arithmetic number, because the mean of its divisors is an integer number (9901395).

Almost surely, 2^122315245 is an apocalyptic number.

It is an amenable number.

122315245 is a deficient number, since it is larger than the sum of its proper divisors (36107075).

122315245 is a wasteful number, since it uses less digits than its factorization.

122315245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224.

The product of its digits is 2400, while the sum is 25.

The square root of 122315245 is about 11059.6222810727. The cubic root of 122315245 is about 496.3943882945.

Adding to 122315245 its reverse (542513221), we get a palindrome (664828466).

The spelling of 122315245 in words is "one hundred twenty-two million, three hundred fifteen thousand, two hundred forty-five".