105421110 has 32 divisors (see below), whose sum is σ = 253532160. Its totient is φ = 28054368.

The previous prime is 105421109. The next prime is 105421157. The reversal of 105421110 is 11124501.

It is a happy number.

It is a super-2 number, since 2×105421110² = 22227220867264200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 105421110.

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, 12331 + ... + 19049.

It is an arithmetic number, because the mean of its divisors is an integer number (7922880).

Almost surely, 2^105421110 is an apocalyptic number.

105421110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105421110 is an abundant number, since it is smaller than the sum of its proper divisors (148111050).

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

105421110 is a wasteful number, since it uses less digits than its factorization.

105421110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 105421110 is about 10267.4782687864. The cubic root of 105421110 is about 472.3992450546.

Adding to 105421110 its reverse (11124501), we get a palindrome (116545611).

The spelling of 105421110 in words is "one hundred five million, four hundred twenty-one thousand, one hundred ten".