1090801 has 4 divisors (see below), whose sum is σ = 1096704. Its totient is φ = 1084900.

The previous prime is 1090799. The next prime is 1090807. The reversal of 1090801 is 1080901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1090801 - 2¹ = 1090799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1090807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665 + ... + 3046.

It is an arithmetic number, because the mean of its divisors is an integer number (274176).

2^1090801 is an apocalyptic number.

It is an amenable number.

1090801 is a deficient number, since it is larger than the sum of its proper divisors (5903).

1090801 is an equidigital number, since it uses as much as digits as its factorization.

1090801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1090801 is about 1044.4141898691. The cubic root of 1090801 is about 102.9394497541.

It can be divided in two parts, 1090 and 801, that added together give a triangular number (1891 = T₆₁).

The spelling of 1090801 in words is "one million, ninety thousand, eight hundred one".