105551418 has 32 divisors (see below), whose sum is σ = 242504064. Its totient is φ = 30002112.

The previous prime is 105551389. The next prime is 105551437. The reversal of 105551418 is 814155501.

It is a super-2 number, since 2×105551418² = 22282203683621448, which contains 22 as substring.

It is an unprimeable number.

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, 1896 + ... + 14652.

It is an arithmetic number, because the mean of its divisors is an integer number (7578252).

Almost surely, 2^105551418 is an apocalyptic number.

105551418 is an abundant number, since it is smaller than the sum of its proper divisors (136952646).

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

105551418 is a wasteful number, since it uses less digits than its factorization.

105551418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12966.

The product of its (nonzero) digits is 4000, while the sum is 30.

The square root of 105551418 is about 10273.8219762657. The cubic root of 105551418 is about 472.5938046171.

The spelling of 105551418 in words is "one hundred five million, five hundred fifty-one thousand, four hundred eighteen".