1113591 has 8 divisors (see below), whose sum is σ = 1549440. Its totient is φ = 710072.

The previous prime is 1113587. The next prime is 1113599. The reversal of 1113591 is 1953111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1113591 - 2² = 1113587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001 + ... + 8138.

It is an arithmetic number, because the mean of its divisors is an integer number (193680).

2^1113591 is an apocalyptic number.

1113591 is a deficient number, since it is larger than the sum of its proper divisors (435849).

1113591 is a wasteful number, since it uses less digits than its factorization.

1113591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16165.

The product of its digits is 135, while the sum is 21.

The square root of 1113591 is about 1055.2682123517. The cubic root of 1113591 is about 103.6514155227.

The spelling of 1113591 in words is "one million, one hundred thirteen thousand, five hundred ninety-one".