4186145 has 8 divisors (see below), whose sum is σ = 5070120. Its totient is φ = 3317760.

The previous prime is 4186129. The next prime is 4186151. The reversal of 4186145 is 5416814.

4186145 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 4 ways, for example, as 1056784 + 3129361 = 1028^2 + 1769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4186145 - 2⁴ = 4186129 is a prime.

It is a super-2 number, since 2×4186145² = 35047619922050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3296 + ... + 4385.

It is an arithmetic number, because the mean of its divisors is an integer number (633765).

Almost surely, 2^4186145 is an apocalyptic number.

It is an amenable number.

4186145 is a deficient number, since it is larger than the sum of its proper divisors (883975).

4186145 is a wasteful number, since it uses less digits than its factorization.

4186145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795.

The product of its digits is 3840, while the sum is 29.

The square root of 4186145 is about 2046.0070869867. The cubic root of 4186145 is about 161.1652560340.

Subtracting from 4186145 its sum of digits (29), we obtain a square (4186116 = 2046²).

The spelling of 4186145 in words is "four million, one hundred eighty-six thousand, one hundred forty-five".