105611898 has 32 divisors (see below), whose sum is σ = 241785216. Its totient is φ = 30126528.

The previous prime is 105611893. The next prime is 105611911. The reversal of 105611898 is 898116501.

It is a super-2 number, since 2×105611898² = 22307745998324808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105611893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30840 + ... + 34092.

It is an arithmetic number, because the mean of its divisors is an integer number (7555788).

Almost surely, 2^105611898 is an apocalyptic number.

105611898 is an abundant number, since it is smaller than the sum of its proper divisors (136173318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105611898 is a wasteful number, since it uses less digits than its factorization.

105611898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 105611898 is about 10276.7649579038. The cubic root of 105611898 is about 472.6840513626.

The spelling of 105611898 in words is "one hundred five million, six hundred eleven thousand, eight hundred ninety-eight".