1591459 has 4 divisors (see below), whose sum is σ = 1675240. Its totient is φ = 1507680.

The previous prime is 1591441. The next prime is 1591463. The reversal of 1591459 is 9541951.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1591459 - 2¹¹ = 1589411 is a prime.

It is a Duffinian number.

1591459 is a lucky number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1591159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41862 + ... + 41899.

It is an arithmetic number, because the mean of its divisors is an integer number (418810).

2^1591459 is an apocalyptic number.

1591459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1591459 is a deficient number, since it is larger than the sum of its proper divisors (83781).

1591459 is an equidigital number, since it uses as much as digits as its factorization.

1591459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83780.

The product of its digits is 8100, while the sum is 34.

The square root of 1591459 is about 1261.5304197680. The cubic root of 1591459 is about 116.7522211457.

The spelling of 1591459 in words is "one million, five hundred ninety-one thousand, four hundred fifty-nine".