105999026 has 16 divisors (see below), whose sum is σ = 183146496. Its totient is φ = 45069696.

The previous prime is 105999011. The next prime is 105999041. The reversal of 105999026 is 620999501.

It is an interprime number because it is at equal distance from previous prime (105999011) and next prime (105999041).

It is a super-2 number, since 2×105999026² = 22471587025897352, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28031 + ... + 31586.

It is an arithmetic number, because the mean of its divisors is an integer number (11446656).

Almost surely, 2^105999026 is an apocalyptic number.

105999026 is a deficient number, since it is larger than the sum of its proper divisors (77147470).

105999026 is a wasteful number, since it uses less digits than its factorization.

105999026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59753.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 105999026 is about 10295.5828392568. The cubic root of 105999026 is about 473.2608995599.

The spelling of 105999026 in words is "one hundred five million, nine hundred ninety-nine thousand, twenty-six".