105545000 has 160 divisors (see below), whose sum is σ = 286783200. Its totient is φ = 36000000.

The previous prime is 105544973. The next prime is 105545059. The reversal of 105545000 is 545501.

It is a super-2 number, since 2×105545000² = 22279494050000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 1044950 + ... + 1045050.

It is an arithmetic number, because the mean of its divisors is an integer number (1792395).

Almost surely, 2^105545000 is an apocalyptic number.

105545000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105545000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143391600).

105545000 is an abundant number, since it is smaller than the sum of its proper divisors (181238200).

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

105545000 is a wasteful number, since it uses less digits than its factorization.

105545000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 105545000 is about 10273.5096242715. The cubic root of 105545000 is about 472.5842258148.

The spelling of 105545000 in words is "one hundred five million, five hundred forty-five thousand".