105915912 has 16 divisors (see below), whose sum is σ = 264789840. Its totient is φ = 35305296.

The previous prime is 105915869. The next prime is 105915913. The reversal of 105915912 is 219519501.

It is a happy number.

It is a super-2 number, since 2×105915912² = 22436360829583488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105915913) 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, 2206558 + ... + 2206605.

It is an arithmetic number, because the mean of its divisors is an integer number (16549365).

Almost surely, 2^105915912 is an apocalyptic number.

105915912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105915912 is an abundant number, since it is smaller than the sum of its proper divisors (158873928).

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

105915912 is a wasteful number, since it uses less digits than its factorization.

105915912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413172 (or 4413168 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 33.

The square root of 105915912 is about 10291.5456565085. The cubic root of 105915912 is about 473.1371723486.

The spelling of 105915912 in words is "one hundred five million, nine hundred fifteen thousand, nine hundred twelve".