1368591 has 8 divisors (see below), whose sum is σ = 2085504. Its totient is φ = 782040.

The previous prime is 1368547. The next prime is 1368599. The reversal of 1368591 is 1958631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1368591 - 2⁶ = 1368527 is a prime.

1368591 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32565 + ... + 32606.

It is an arithmetic number, because the mean of its divisors is an integer number (260688).

2^1368591 is an apocalyptic number.

1368591 is a deficient number, since it is larger than the sum of its proper divisors (716913).

1368591 is an equidigital number, since it uses as much as digits as its factorization.

1368591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65181.

The product of its digits is 6480, while the sum is 33.

The square root of 1368591 is about 1169.8679412652. The cubic root of 1368591 is about 111.0259658433.

The spelling of 1368591 in words is "one million, three hundred sixty-eight thousand, five hundred ninety-one".