10891135 has 16 divisors (see below), whose sum is σ = 14216256. Its totient is φ = 7976448.

The previous prime is 10891099. The next prime is 10891147. The reversal of 10891135 is 53119801.

It is a cyclic number.

It is not a de Polignac number, because 10891135 - 2⁹ = 10890623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414 + ... + 4876.

It is an arithmetic number, because the mean of its divisors is an integer number (888516).

Almost surely, 2^10891135 is an apocalyptic number.

10891135 is a deficient number, since it is larger than the sum of its proper divisors (3325121).

10891135 is a wasteful number, since it uses less digits than its factorization.

10891135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 10891135 is about 3300.1719652164. The cubic root of 10891135 is about 221.6618977498.

It can be divided in two parts, 10891 and 135, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 10891135 in words is "ten million, eight hundred ninety-one thousand, one hundred thirty-five".