1026161 has 4 divisors (see below), whose sum is σ = 1040292. Its totient is φ = 1012032.

The previous prime is 1026143. The next prime is 1026167. The reversal of 1026161 is 1616201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 250000 + 776161 = 500^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026161 - 2¹⁰ = 1025137 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1026167) 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, 6956 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (260073).

2^1026161 is an apocalyptic number.

It is an amenable number.

1026161 is a deficient number, since it is larger than the sum of its proper divisors (14131).

1026161 is an equidigital number, since it uses as much as digits as its factorization.

1026161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14130.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1026161 is about 1012.9960513250. The cubic root of 1026161 is about 100.8645375425.

The spelling of 1026161 in words is "one million, twenty-six thousand, one hundred sixty-one".