1040091 has 8 divisors (see below), whose sum is σ = 1493520. Its totient is φ = 640032.

The previous prime is 1040089. The next prime is 1040093. The reversal of 1040091 is 1900401.

It is an interprime number because it is at equal distance from previous prime (1040089) and next prime (1040093).

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

It is not a de Polignac number, because 1040091 - 2¹ = 1040089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040091.

It is not an unprimeable number, because it can be changed into a prime (1040093) 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, 13296 + ... + 13373.

It is an arithmetic number, because the mean of its divisors is an integer number (186690).

2^1040091 is an apocalyptic number.

1040091 is a deficient number, since it is larger than the sum of its proper divisors (453429).

1040091 is a wasteful number, since it uses less digits than its factorization.

1040091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26685.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1040091 is about 1019.8485181634. The cubic root of 1040091 is about 101.3188953441.

Adding to 1040091 its reverse (1900401), we get a palindrome (2940492).

The spelling of 1040091 in words is "one million, forty thousand, ninety-one".