561122 has 4 divisors (see below), whose sum is σ = 841686. Its totient is φ = 280560.

The previous prime is 561109. The next prime is 561161. The reversal of 561122 is 221165.

561122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 561001 + 121 = 749^2 + 11^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 561122.

It is an unprimeable number.

561122 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140279 + ... + 140282.

2⁵⁶¹¹²² is an apocalyptic number.

561122 is a deficient number, since it is larger than the sum of its proper divisors (280564).

561122 is a wasteful number, since it uses less digits than its factorization.

561122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280563.

The product of its digits is 120, while the sum is 17.

The square root of 561122 is about 749.0807700108. The cubic root of 561122 is about 82.4807178689.

Adding to 561122 its reverse (221165), we get a palindrome (782287).

The spelling of 561122 in words is "five hundred sixty-one thousand, one hundred twenty-two".