186106401 has 12 divisors (see below), whose sum is σ = 289499028. Its totient is φ = 114526944.

The previous prime is 186106397. The next prime is 186106433. The reversal of 186106401 is 104601681.

186106401 is a `hidden beast` number, since 1 + 8 + 6 + 10 + 640 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54774801 + 131331600 = 7401^2 + 11460^2 .

It is not a de Polignac number, because 186106401 - 2² = 186106397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (186106441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 795210 + ... + 795443.

It is an arithmetic number, because the mean of its divisors is an integer number (24124919).

Almost surely, 2^186106401 is an apocalyptic number.

It is an amenable number.

186106401 is a deficient number, since it is larger than the sum of its proper divisors (103392627).

186106401 is a wasteful number, since it uses less digits than its factorization.

186106401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590672 (or 1590669 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 186106401 is about 13642.0819891980. The cubic root of 186106401 is about 570.9355734299.

The spelling of 186106401 in words is "one hundred eighty-six million, one hundred six thousand, four hundred one".