1090169 has 2 divisors, whose sum is σ = 1090170. Its totient is φ = 1090168.

The previous prime is 1090153. The next prime is 1090181. The reversal of 1090169 is 9610901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 620944 + 469225 = 788^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1090169 - 2⁴ = 1090153 is a prime.

It is a super-2 number, since 2×1090169² = 2376936897122, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (1090129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545084 + 545085.

It is an arithmetic number, because the mean of its divisors is an integer number (545085).

2^1090169 is an apocalyptic number.

It is an amenable number.

1090169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090169 is an equidigital number, since it uses as much as digits as its factorization.

1090169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1090169 is about 1044.1115840752. Note that the first 3 decimals coincide. The cubic root of 1090169 is about 102.9195651920.

The spelling of 1090169 in words is "one million, ninety thousand, one hundred sixty-nine".