105045819 has 4 divisors (see below), whose sum is σ = 140061096. Its totient is φ = 70030544.

The previous prime is 105045797. The next prime is 105045821. The reversal of 105045819 is 918540501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105045819 - 2⁷ = 105045691 is a prime.

It is a super-2 number, since 2×105045819² = 22069248178761522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105045819.

It is not an unprimeable number, because it can be changed into a prime (105045119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17507634 + ... + 17507639.

It is an arithmetic number, because the mean of its divisors is an integer number (35015274).

Almost surely, 2^105045819 is an apocalyptic number.

105045819 is a deficient number, since it is larger than the sum of its proper divisors (35015277).

105045819 is an equidigital number, since it uses as much as digits as its factorization.

105045819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35015276.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 105045819 is about 10249.1862603818. The cubic root of 105045819 is about 471.8380102812.

The spelling of 105045819 in words is "one hundred five million, forty-five thousand, eight hundred nineteen".