1152591 has 16 divisors (see below), whose sum is σ = 1710720. Its totient is φ = 684320.

The previous prime is 1152589. The next prime is 1152623. The reversal of 1152591 is 1952511.

It is a cyclic number.

It is not a de Polignac number, because 1152591 - 2¹ = 1152589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (106920).

2^1152591 is an apocalyptic number.

1152591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1152591 is a deficient number, since it is larger than the sum of its proper divisors (558129).

1152591 is a wasteful number, since it uses less digits than its factorization.

1152591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its digits is 450, while the sum is 24.

The square root of 1152591 is about 1073.5879097680. The cubic root of 1152591 is about 104.8475793028.

The spelling of 1152591 in words is "one million, one hundred fifty-two thousand, five hundred ninety-one".