1394591 has 4 divisors (see below), whose sum is σ = 1521384. Its totient is φ = 1267800.

The previous prime is 1394579. The next prime is 1394599. The reversal of 1394591 is 1954931.

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 1394591 - 2¹⁸ = 1132447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63380 + ... + 63401.

It is an arithmetic number, because the mean of its divisors is an integer number (380346).

2^1394591 is an apocalyptic number.

1394591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1394591 is a deficient number, since it is larger than the sum of its proper divisors (126793).

1394591 is a wasteful number, since it uses less digits than its factorization.

1394591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126792.

The product of its digits is 4860, while the sum is 32.

The square root of 1394591 is about 1180.9280249024. The cubic root of 1394591 is about 111.7246371113.

The spelling of 1394591 in words is "one million, three hundred ninety-four thousand, five hundred ninety-one".