28141185 has 32 divisors (see below), whose sum is σ = 47698560. Its totient is φ = 14128128.

The previous prime is 28141163. The next prime is 28141189. The reversal of 28141185 is 58114182.

It is a happy number.

It is not a de Polignac number, because 28141185 - 2⁵ = 28141153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28141189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83337 + ... + 83673.

It is an arithmetic number, because the mean of its divisors is an integer number (1490580).

Almost surely, 2^28141185 is an apocalyptic number.

It is an amenable number.

28141185 is a deficient number, since it is larger than the sum of its proper divisors (19557375).

28141185 is a wasteful number, since it uses less digits than its factorization.

28141185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its digits is 2560, while the sum is 30.

The square root of 28141185 is about 5304.8265758647. The cubic root of 28141185 is about 304.1684236674.

The spelling of 28141185 in words is "twenty-eight million, one hundred forty-one thousand, one hundred eighty-five".