1122455889 has 48 divisors (see below), whose sum is σ = 1762722000. Its totient is φ = 685621248.

The previous prime is 1122455881. The next prime is 1122455909. The reversal of 1122455889 is 9885542211.

1122455889 is a `hidden beast` number, since 1 + 1 + 22 + 45 + 588 + 9 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 85100625 + 1037355264 = 9225^2 + 32208^2 .

It is not a de Polignac number, because 1122455889 - 2³ = 1122455881 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1122455881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1207777 + ... + 1208705.

It is an arithmetic number, because the mean of its divisors is an integer number (36723375).

Almost surely, 2^1122455889 is an apocalyptic number.

It is an amenable number.

1122455889 is a deficient number, since it is larger than the sum of its proper divisors (640266111).

1122455889 is a wasteful number, since it uses less digits than its factorization.

1122455889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1151 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 1122455889 is about 33503.0728292197. The cubic root of 1122455889 is about 1039.2573251121.

The spelling of 1122455889 in words is "one billion, one hundred twenty-two million, four hundred fifty-five thousand, eight hundred eighty-nine".