18626113 has 16 divisors (see below), whose sum is σ = 21482496. Its totient is φ = 15983440.

The previous prime is 18626107. The next prime is 18626119. The reversal of 18626113 is 31162681.

It is an interprime number because it is at equal distance from previous prime (18626107) and next prime (18626119).

It is not a de Polignac number, because 18626113 - 2⁵ = 18626081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18626119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20556 + ... + 21442.

It is an arithmetic number, because the mean of its divisors is an integer number (1342656).

Almost surely, 2^18626113 is an apocalyptic number.

It is an amenable number.

18626113 is a deficient number, since it is larger than the sum of its proper divisors (2856383).

18626113 is a wasteful number, since it uses less digits than its factorization.

18626113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004.

The product of its digits is 1728, while the sum is 28.

The square root of 18626113 is about 4315.7980721994. The cubic root of 18626113 is about 265.0782396249.

Adding to 18626113 its reverse (31162681), we get a palindrome (49788794).

The spelling of 18626113 in words is "eighteen million, six hundred twenty-six thousand, one hundred thirteen".