105019855 has 8 divisors (see below), whose sum is σ = 128705472. Its totient is φ = 82228128.

The previous prime is 105019853. The next prime is 105019867. The reversal of 105019855 is 558910501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105019855 - 2¹ = 105019853 is a prime.

It is a super-2 number, since 2×105019855² = 22058339888442050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105019855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105019853) 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, 223212 + ... + 223681.

It is an arithmetic number, because the mean of its divisors is an integer number (16088184).

Almost surely, 2^105019855 is an apocalyptic number.

105019855 is a deficient number, since it is larger than the sum of its proper divisors (23685617).

105019855 is an equidigital number, since it uses as much as digits as its factorization.

105019855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446945.

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 105019855 is about 10247.9195449613. The cubic root of 105019855 is about 471.7991326064.

The spelling of 105019855 in words is "one hundred five million, nineteen thousand, eight hundred fifty-five".