1441591 has 2 divisors, whose sum is σ = 1441592. Its totient is φ = 1441590.

The previous prime is 1441589. The next prime is 1441603. The reversal of 1441591 is 1951441.

It is a weak prime.

It is an emirp because it is prime and its reverse (1951441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1441591 - 2¹ = 1441589 is a prime.

It is a super-2 number, since 2×1441591² = 4156369222562, which contains 22 as substring.

Together with 1441589, it forms a pair of twin primes.

1441591 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720795 + 720796.

It is an arithmetic number, because the mean of its divisors is an integer number (720796).

2^1441591 is an apocalyptic number.

1441591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441591 is an equidigital number, since it uses as much as digits as its factorization.

1441591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 1441591 is about 1200.6627336600. The cubic root of 1441591 is about 112.9658967231.

The spelling of 1441591 in words is "one million, four hundred forty-one thousand, five hundred ninety-one".