186205045 has 12 divisors (see below), whose sum is σ = 241957476. Its totient is φ = 137504640.

The previous prime is 186205037. The next prime is 186205051. The reversal of 186205045 is 540502681.

186205045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2304324 + 183900721 = 1518^2 + 13561^2 .

It is not a de Polignac number, because 186205045 - 2³ = 186205037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 186204998 and 186205016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109336 + ... + 111025.

It is an arithmetic number, because the mean of its divisors is an integer number (20163123).

Almost surely, 2^186205045 is an apocalyptic number.

It is an amenable number.

186205045 is a deficient number, since it is larger than the sum of its proper divisors (55752431).

186205045 is a wasteful number, since it uses less digits than its factorization.

186205045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220392 (or 220379 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 186205045 is about 13645.6969407942. The cubic root of 186205045 is about 571.0364286769.

The spelling of 186205045 in words is "one hundred eighty-six million, two hundred five thousand, forty-five".