105118999 has 2 divisors, whose sum is σ = 105119000. Its totient is φ = 105118998.

The previous prime is 105118991. The next prime is 105119017. The reversal of 105118999 is 999811501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105118999 - 2³ = 105118991 is a prime.

It is a super-2 number, since 2×105118999² = 22100007901524002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105118991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52559499 + 52559500.

It is an arithmetic number, because the mean of its divisors is an integer number (52559500).

Almost surely, 2^105118999 is an apocalyptic number.

105118999 is a deficient number, since it is larger than the sum of its proper divisors (1).

105118999 is an equidigital number, since it uses as much as digits as its factorization.

105118999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 43.

The square root of 105118999 is about 10252.7556783530. The cubic root of 105118999 is about 471.9475532432.

The spelling of 105118999 in words is "one hundred five million, one hundred eighteen thousand, nine hundred ninety-nine".