105211855 has 16 divisors (see below), whose sum is σ = 149267520. Its totient is φ = 69656832.

The previous prime is 105211829. The next prime is 105211877. The reversal of 105211855 is 558112501.

It is not a de Polignac number, because 105211855 - 2⁷ = 105211727 is a prime.

It is a super-2 number, since 2×105211855² = 22139068865082050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50814 + ... + 52843.

It is an arithmetic number, because the mean of its divisors is an integer number (9329220).

Almost surely, 2^105211855 is an apocalyptic number.

105211855 is a deficient number, since it is larger than the sum of its proper divisors (44055665).

105211855 is a wasteful number, since it uses less digits than its factorization.

105211855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103698.

The product of its (nonzero) digits is 2000, while the sum is 28.

The square root of 105211855 is about 10257.2830223213. The cubic root of 105211855 is about 472.0864760042.

The spelling of 105211855 in words is "one hundred five million, two hundred eleven thousand, eight hundred fifty-five".