105812999 has 2 divisors, whose sum is σ = 105813000. Its totient is φ = 105812998.

The previous prime is 105812977. The next prime is 105813011. The reversal of 105812999 is 999218501.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (999218501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105812999 - 2¹² = 105808903 is a prime.

It is a super-2 number, since 2×105812999² = 22392781514748002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105812939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52906499 + 52906500.

It is an arithmetic number, because the mean of its divisors is an integer number (52906500).

Almost surely, 2^105812999 is an apocalyptic number.

105812999 is a deficient number, since it is larger than the sum of its proper divisors (1).

105812999 is an equidigital number, since it uses as much as digits as its factorization.

105812999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 105812999 is about 10286.5445607356. The cubic root of 105812999 is about 472.9838817369.

The spelling of 105812999 in words is "one hundred five million, eight hundred twelve thousand, nine hundred ninety-nine".