105999974 has 16 divisors (see below), whose sum is σ = 172769280. Its totient is φ = 48590280.

The previous prime is 105999973. The next prime is 105999977. The reversal of 105999974 is 479999501.

It is a super-2 number, since 2×105999974² = 22471988976001352, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105999973) 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, 43814 + ... + 46169.

It is an arithmetic number, because the mean of its divisors is an integer number (10798080).

Almost surely, 2^105999974 is an apocalyptic number.

105999974 is a deficient number, since it is larger than the sum of its proper divisors (66769306).

105999974 is a wasteful number, since it uses less digits than its factorization.

105999974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90035.

The product of its (nonzero) digits is 918540, while the sum is 53.

The square root of 105999974 is about 10295.6288783153. The cubic root of 105999974 is about 473.2623104219.

The spelling of 105999974 in words is "one hundred five million, nine hundred ninety-nine thousand, nine hundred seventy-four".