1591159 has 2 divisors, whose sum is σ = 1591160. Its totient is φ = 1591158.

The previous prime is 1591141. The next prime is 1591189. The reversal of 1591159 is 9511951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1591159 - 2⁵ = 1591127 is a prime.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 1591159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1591189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 795579 + 795580.

It is an arithmetic number, because the mean of its divisors is an integer number (795580).

2^1591159 is an apocalyptic number.

1591159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1591159 is an equidigital number, since it uses as much as digits as its factorization.

1591159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2025, while the sum is 31.

The square root of 1591159 is about 1261.4115109670. The cubic root of 1591159 is about 116.7448845095.

The spelling of 1591159 in words is "one million, five hundred ninety-one thousand, one hundred fifty-nine".