1121506 has 4 divisors (see below), whose sum is σ = 1682262. Its totient is φ = 560752.

The previous prime is 1121453. The next prime is 1121509. The reversal of 1121506 is 6051211.

It is a happy number.

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., 1121481 + 25 = 1059^2 + 5^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121506.

It is not an unprimeable number, because it can be changed into a prime (1121509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280375 + ... + 280378.

2^1121506 is an apocalyptic number.

1121506 is a deficient number, since it is larger than the sum of its proper divisors (560756).

1121506 is an equidigital number, since it uses as much as digits as its factorization.

1121506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560755.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1121506 is about 1059.0118035225. The cubic root of 1121506 is about 103.8964081903.

Adding to 1121506 its reverse (6051211), we get a palindrome (7172717).

The spelling of 1121506 in words is "one million, one hundred twenty-one thousand, five hundred six".