1180591 has 2 divisors, whose sum is σ = 1180592. Its totient is φ = 1180590.

The previous prime is 1180577. The next prime is 1180631. The reversal of 1180591 is 1950811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1180591 - 2¹⁷ = 1049519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1180391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590295 + 590296.

It is an arithmetic number, because the mean of its divisors is an integer number (590296).

2^1180591 is an apocalyptic number.

1180591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180591 is an equidigital number, since it uses as much as digits as its factorization.

1180591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 1180591 is about 1086.5500448668. The cubic root of 1180591 is about 105.6898194624.

It can be divided in two parts, 1180 and 591, that added together give a palindrome (1771).

The spelling of 1180591 in words is "one million, one hundred eighty thousand, five hundred ninety-one".