2291135 has 24 divisors (see below), whose sum is σ = 3460128. Its totient is φ = 1425600.

The previous prime is 2291131. The next prime is 2291143. The reversal of 2291135 is 5311922.

It is not a de Polignac number, because 2291135 - 2² = 2291131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2291135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3965 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (144172).

2^2291135 is an apocalyptic number.

2291135 is a deficient number, since it is larger than the sum of its proper divisors (1168993).

2291135 is a wasteful number, since it uses less digits than its factorization.

2291135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 564 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 2291135 is about 1513.6495631420. The cubic root of 2291135 is about 131.8308017320.

The spelling of 2291135 in words is "two million, two hundred ninety-one thousand, one hundred thirty-five".