1121785074 has 24 divisors (see below), whose sum is σ = 2438841132. Its totient is φ = 372650400.

The previous prime is 1121785039. The next prime is 1121785079. The reversal of 1121785074 is 4705871211.

It can be written as a sum of positive squares in 2 ways, for example, as 911738025 + 210047049 = 30195^2 + 14493^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121785079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101077 + ... + 111624.

Almost surely, 2^1121785074 is an apocalyptic number.

1121785074 is an abundant number, since it is smaller than the sum of its proper divisors (1317056058).

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

1121785074 is a wasteful number, since it uses less digits than its factorization.

1121785074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213002 (or 212999 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 1121785074 is about 33493.0600871285. The cubic root of 1121785074 is about 1039.0502528833.

The spelling of 1121785074 in words is "one billion, one hundred twenty-one million, seven hundred eighty-five thousand, seventy-four".