1122455578 has 4 divisors (see below), whose sum is σ = 1683683370. Its totient is φ = 561227788.

The previous prime is 1122455567. The next prime is 1122455599. The reversal of 1122455578 is 8755542211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8755542211 = 13 ⋅673503247.

It can be written as a sum of positive squares in only one way, i.e., 1118032969 + 4422609 = 33437^2 + 2103^2 .

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1122455578.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280613893 + ... + 280613896.

Almost surely, 2^1122455578 is an apocalyptic number.

1122455578 is a deficient number, since it is larger than the sum of its proper divisors (561227792).

1122455578 is an equidigital number, since it uses as much as digits as its factorization.

1122455578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561227791.

The product of its digits is 112000, while the sum is 40.

The square root of 1122455578 is about 33503.0681878541. The cubic root of 1122455578 is about 1039.2572291294.

Adding to 1122455578 its reverse (8755542211), we get a palindrome (9877997789).

The spelling of 1122455578 in words is "one billion, one hundred twenty-two million, four hundred fifty-five thousand, five hundred seventy-eight".