1090061 has 4 divisors (see below), whose sum is σ = 1245792. Its totient is φ = 934332.

The previous prime is 1090031. The next prime is 1090097. The reversal of 1090061 is 1600901.

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 de Polignac number, because none of the positive numbers 2^k-1090061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090021) 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, 77855 + ... + 77868.

It is an arithmetic number, because the mean of its divisors is an integer number (311448).

2^1090061 is an apocalyptic number.

It is an amenable number.

1090061 is a deficient number, since it is larger than the sum of its proper divisors (155731).

1090061 is an equidigital number, since it uses as much as digits as its factorization.

1090061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155730.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1090061 is about 1044.0598641840. The cubic root of 1090061 is about 102.9161664284.

Adding to 1090061 its reverse (1600901), we get a palindrome (2690962).

The spelling of 1090061 in words is "one million, ninety thousand, sixty-one".