1122455678 has 4 divisors (see below), whose sum is σ = 1683683520. Its totient is φ = 561227838.

The previous prime is 1122455669. The next prime is 1122455681. The reversal of 1122455678 is 8765542211.

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

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280613918 + ... + 280613921.

It is an arithmetic number, because the mean of its divisors is an integer number (420920880).

Almost surely, 2^1122455678 is an apocalyptic number.

1122455678 is a deficient number, since it is larger than the sum of its proper divisors (561227842).

1122455678 is an equidigital number, since it uses as much as digits as its factorization.

1122455678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561227841.

The product of its digits is 134400, while the sum is 41.

The square root of 1122455678 is about 33503.0696802547. The cubic root of 1122455678 is about 1039.2572599920.

Adding to 1122455678 its reverse (8765542211), we get a palindrome (9887997889).

The spelling of 1122455678 in words is "one billion, one hundred twenty-two million, four hundred fifty-five thousand, six hundred seventy-eight".