10890185 has 4 divisors (see below), whose sum is σ = 13068228. Its totient is φ = 8712144.

The previous prime is 10890179. The next prime is 10890199. The reversal of 10890185 is 58109801.

It is a happy number.

10890185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58109801 = 353 ⋅164617.

It can be written as a sum of positive squares in 2 ways, for example, as 4443664 + 6446521 = 2108^2 + 2539^2 .

It is a cyclic number.

It is not a de Polignac number, because 10890185 - 2⁸ = 10889929 is a prime.

It is a super-2 number, since 2×10890185² = 237192258668450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089014 + ... + 1089023.

It is an arithmetic number, because the mean of its divisors is an integer number (3267057).

Almost surely, 2^10890185 is an apocalyptic number.

It is an amenable number.

10890185 is a deficient number, since it is larger than the sum of its proper divisors (2178043).

10890185 is an equidigital number, since it uses as much as digits as its factorization.

10890185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178042.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 10890185 is about 3300.0280301840. The cubic root of 10890185 is about 221.6554526020.

Adding to 10890185 its reverse (58109801), we get a palindrome (68999986).

The spelling of 10890185 in words is "ten million, eight hundred ninety thousand, one hundred eighty-five".