1121749573 has 8 divisors (see below), whose sum is σ = 1357411392. Its totient is φ = 904940736.

The previous prime is 1121749571. The next prime is 1121749579. The reversal of 1121749573 is 3759471211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121749573 - 2¹ = 1121749571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121749571) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4713115 + ... + 4713352.

It is an arithmetic number, because the mean of its divisors is an integer number (169676424).

Almost surely, 2^1121749573 is an apocalyptic number.

It is an amenable number.

1121749573 is a deficient number, since it is larger than the sum of its proper divisors (235661819).

1121749573 is an equidigital number, since it uses as much as digits as its factorization.

1121749573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426491.

The product of its digits is 52920, while the sum is 40.

The square root of 1121749573 is about 33492.5301074732. The cubic root of 1121749573 is about 1039.0392918673.

The spelling of 1121749573 in words is "one billion, one hundred twenty-one million, seven hundred forty-nine thousand, five hundred seventy-three".