105561100 has 18 divisors (see below), whose sum is σ = 229067804. Its totient is φ = 42224400.

The previous prime is 105561091. The next prime is 105561121. The reversal of 105561100 is 1165501.

It is a super-2 number, since 2×105561100² = 22286291666420000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 527706 + ... + 527905.

Almost surely, 2^105561100 is an apocalyptic number.

105561100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105561100 is an abundant number, since it is smaller than the sum of its proper divisors (123506704).

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

105561100 is a wasteful number, since it uses less digits than its factorization.

105561100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055625 (or 1055618 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 105561100 is about 10274.2931630356. The cubic root of 105561100 is about 472.6082541729.

The spelling of 105561100 in words is "one hundred five million, five hundred sixty-one thousand, one hundred".