105122113 has 4 divisors (see below), whose sum is σ = 106163028. Its totient is φ = 104081200.

The previous prime is 105122089. The next prime is 105122119. The reversal of 105122113 is 311221501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102272769 + 2849344 = 10113^2 + 1688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105122113 is a prime.

It is a super-2 number, since 2×105122113² = 22101317283169538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105122119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520306 + ... + 520507.

It is an arithmetic number, because the mean of its divisors is an integer number (26540757).

Almost surely, 2^105122113 is an apocalyptic number.

It is an amenable number.

105122113 is a deficient number, since it is larger than the sum of its proper divisors (1040915).

105122113 is a wasteful number, since it uses less digits than its factorization.

105122113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040914.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 105122113 is about 10252.9075388399. The cubic root of 105122113 is about 471.9522134543.

Adding to 105122113 its reverse (311221501), we get a palindrome (416343614).

The spelling of 105122113 in words is "one hundred five million, one hundred twenty-two thousand, one hundred thirteen".