1013591 has 8 divisors (see below), whose sum is σ = 1085040. Its totient is φ = 943488.

The previous prime is 1013581. The next prime is 1013603. The reversal of 1013591 is 1953101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013591 - 2⁶ = 1013527 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 (1013501) 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, 1580 + ... + 2126.

It is an arithmetic number, because the mean of its divisors is an integer number (135630).

2^1013591 is an apocalyptic number.

1013591 is a deficient number, since it is larger than the sum of its proper divisors (71449).

1013591 is a wasteful number, since it uses less digits than its factorization.

1013591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1013591 is about 1006.7725661737. The cubic root of 1013591 is about 100.4509962990.

Adding to 1013591 its reverse (1953101), we get a palindrome (2966692).

The spelling of 1013591 in words is "one million, thirteen thousand, five hundred ninety-one".