1121577808 has 20 divisors (see below), whose sum is σ = 2340215668. Its totient is φ = 517651200.

The previous prime is 1121577739. The next prime is 1121577811. The reversal of 1121577808 is 8087751211.

It can be written as a sum of positive squares in 2 ways, for example, as 731594304 + 389983504 = 27048^2 + 19748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695893 + ... + 2696308.

Almost surely, 2^1121577808 is an apocalyptic number.

It is an amenable number.

1121577808 is an abundant number, since it is smaller than the sum of its proper divisors (1218637860).

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

1121577808 is a wasteful number, since it uses less digits than its factorization.

1121577808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392222 (or 5392216 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 40.

The square root of 1121577808 is about 33489.9657808126. The cubic root of 1121577808 is about 1038.9862557595.

The spelling of 1121577808 in words is "one billion, one hundred twenty-one million, five hundred seventy-seven thousand, eight hundred eight".