1123653008 has 20 divisors (see below), whose sum is σ = 2291661360. Its totient is φ = 532256544.

The previous prime is 1123653007. The next prime is 1123653023. The reversal of 1123653008 is 8003563211.

It is not an unprimeable number, because it can be changed into a prime (1123653007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847810 + ... + 1848417.

It is an arithmetic number, because the mean of its divisors is an integer number (114583068).

Almost surely, 2^1123653008 is an apocalyptic number.

It is an amenable number.

1123653008 is an abundant number, since it is smaller than the sum of its proper divisors (1168008352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123653008 is a wasteful number, since it uses less digits than its factorization.

1123653008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696254 (or 3696248 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1123653008 is about 33520.9338772057. The cubic root of 1123653008 is about 1039.6266559321.

The spelling of 1123653008 in words is "one billion, one hundred twenty-three million, six hundred fifty-three thousand, eight".