1026091 has 4 divisors (see below), whose sum is σ = 1119384. Its totient is φ = 932800.

The previous prime is 1026073. The next prime is 1026101. The reversal of 1026091 is 1906201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1906201 = 11 ⋅173291.

It is not a de Polignac number, because 1026091 - 2⁹ = 1025579 is a prime.

It is a Duffinian number.

1026091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1026031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46630 + ... + 46651.

It is an arithmetic number, because the mean of its divisors is an integer number (279846).

2^1026091 is an apocalyptic number.

1026091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1026091 is a deficient number, since it is larger than the sum of its proper divisors (93293).

1026091 is an equidigital number, since it uses as much as digits as its factorization.

1026091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93292.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1026091 is about 1012.9614997620. The cubic root of 1026091 is about 100.8622439848.

The spelling of 1026091 in words is "one million, twenty-six thousand, ninety-one".