1010591 has 4 divisors (see below), whose sum is σ = 1063800. Its totient is φ = 957384.

The previous prime is 1010579. The next prime is 1010617. The reversal of 1010591 is 1950101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1950101 = 23 ⋅84787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010591 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 (1010501) 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, 26576 + ... + 26613.

It is an arithmetic number, because the mean of its divisors is an integer number (265950).

2^1010591 is an apocalyptic number.

1010591 is a deficient number, since it is larger than the sum of its proper divisors (53209).

1010591 is an equidigital number, since it uses as much as digits as its factorization.

1010591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53208.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 1010591 is about 1005.2815526011. The cubic root of 1010591 is about 100.3517942899.

Adding to 1010591 its reverse (1950101), we get a palindrome (2960692).

It can be divided in two parts, 10 and 10591, that added together give a palindrome (10601).

The spelling of 1010591 in words is "one million, ten thousand, five hundred ninety-one".