1090601 has 4 divisors (see below), whose sum is σ = 1154772.
Its totient is φ = 1026432.
The previous prime is 1090597. The next prime is 1090613. The reversal of 1090601 is 1060901.
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 1000000 + 90601 = 1000^2 + 301^2
It is a cyclic number.
It is not a de Polignac number, because 1090601 - 22 = 1090597 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 64153 = 1090601 / (1 + 0 + 9 + 0 + 6 + 0 + 1).
1090601 is a strobogrammatic number because it is the same when read upside-down.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 1090601.
It is not an unprimeable number, because it can be changed into a prime (1090681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32060 + ... + 32093.
It is an arithmetic number, because the mean of its divisors is an integer number (288693).
21090601 is an apocalyptic number.
It is an amenable number.
1090601 is a deficient number, since it is larger than the sum of its proper divisors (64171).
1090601 is an equidigital number, since it uses as much as digits as its factorization.
1090601 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64170.
The product of its (nonzero) digits is 54, while the sum is 17.
The square root of 1090601 is about 1044.3184380255.
The cubic root of 1090601 is about 102.9331580021.
The spelling of 1090601 in words is "one million, ninety thousand, six hundred one".