11226591 has 12 divisors (see below), whose sum is σ = 16445520. Its totient is φ = 7378560.

The previous prime is 11226581. The next prime is 11226601. The reversal of 11226591 is 19562211.

11226591 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 659 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (11226581) and next prime (11226601).

It is not a de Polignac number, because 11226591 - 2⁷ = 11226463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11226521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8146 + ... + 9423.

It is an arithmetic number, because the mean of its divisors is an integer number (1370460).

Almost surely, 2^11226591 is an apocalyptic number.

11226591 is a deficient number, since it is larger than the sum of its proper divisors (5218929).

11226591 is a wasteful number, since it uses less digits than its factorization.

11226591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17646 (or 17643 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 11226591 is about 3350.6105413790. The cubic root of 11226591 is about 223.9147142905.

The spelling of 11226591 in words is "eleven million, two hundred twenty-six thousand, five hundred ninety-one".