13018122 has 24 divisors (see below), whose sum is σ = 30376164. Its totient is φ = 4005504.

The previous prime is 13018111. The next prime is 13018123. The reversal of 13018122 is 22181031.

It can be written as a sum of positive squares in 2 ways, for example, as 10830681 + 2187441 = 3291^2 + 1479^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13018095 and 13018104.

It is not an unprimeable number, because it can be changed into a prime (13018123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27583 + ... + 28050.

Almost surely, 2^13018122 is an apocalyptic number.

13018122 is an abundant number, since it is smaller than the sum of its proper divisors (17358042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13018122 is a wasteful number, since it uses less digits than its factorization.

13018122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55654 (or 55651 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 13018122 is about 3608.0634695083. The cubic root of 13018122 is about 235.2426767276.

Adding to 13018122 its reverse (22181031), we get a palindrome (35199153).

The spelling of 13018122 in words is "thirteen million, eighteen thousand, one hundred twenty-two".