105105994 has 16 divisors (see below), whose sum is σ = 180980928. Its totient is φ = 44845632.

The previous prime is 105105983. The next prime is 105105997. The reversal of 105105994 is 499501501.

It is a happy number.

It is a super-2 number, since 2×105105994² = 22094539949456072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105105997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13359 + ... + 19714.

It is an arithmetic number, because the mean of its divisors is an integer number (11311308).

Almost surely, 2^105105994 is an apocalyptic number.

105105994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

105105994 is a deficient number, since it is larger than the sum of its proper divisors (75874934).

105105994 is a wasteful number, since it uses less digits than its factorization.

105105994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33309.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 105105994 is about 10252.1214389998. The cubic root of 105105994 is about 471.9280898062.

The spelling of 105105994 in words is "one hundred five million, one hundred five thousand, nine hundred ninety-four".