1121750785 has 16 divisors (see below), whose sum is σ = 1419269760. Its totient is φ = 848776320.

The previous prime is 1121750771. The next prime is 1121750801. The reversal of 1121750785 is 5870571211.

It is a happy number.

It is not a de Polignac number, because 1121750785 - 2⁵ = 1121750753 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50589 + ... + 69301.

It is an arithmetic number, because the mean of its divisors is an integer number (88704360).

Almost surely, 2^1121750785 is an apocalyptic number.

It is an amenable number.

1121750785 is a deficient number, since it is larger than the sum of its proper divisors (297518975).

1121750785 is a wasteful number, since it uses less digits than its factorization.

1121750785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19368.

The product of its (nonzero) digits is 19600, while the sum is 37.

The square root of 1121750785 is about 33492.5482010551. The cubic root of 1121750785 is about 1039.0396660790.

The spelling of 1121750785 in words is "one billion, one hundred twenty-one million, seven hundred fifty thousand, seven hundred eighty-five".