1120456 has 8 divisors (see below), whose sum is σ = 2100870. Its totient is φ = 560224.

The previous prime is 1120429. The next prime is 1120459. The reversal of 1120456 is 6540211.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 17956 = 1050^2 + 134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1120459) 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 as a sum of consecutive naturals, namely, 70021 + ... + 70036.

2^1120456 is an apocalyptic number.

It is an amenable number.

1120456 is a deficient number, since it is larger than the sum of its proper divisors (980414).

1120456 is a wasteful number, since it uses less digits than its factorization.

1120456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140063 (or 140059 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1120456 is about 1058.5159422512. The cubic root of 1120456 is about 103.8639740373.

Adding to 1120456 its reverse (6540211), we get a palindrome (7660667).

The spelling of 1120456 in words is "one million, one hundred twenty thousand, four hundred fifty-six".