1121769673 has 4 divisors (see below), whose sum is σ = 1122184960. Its totient is φ = 1121354388.

The previous prime is 1121769647. The next prime is 1121769679. The reversal of 1121769673 is 3769671211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3769671211 = 173 ⋅21790007.

It is a cyclic number.

It is not a de Polignac number, because 1121769673 - 2⁹ = 1121769161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121769679) 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, 203565 + ... + 209002.

It is an arithmetic number, because the mean of its divisors is an integer number (280546240).

Almost surely, 2^1121769673 is an apocalyptic number.

It is an amenable number.

1121769673 is a deficient number, since it is larger than the sum of its proper divisors (415287).

1121769673 is an equidigital number, since it uses as much as digits as its factorization.

1121769673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415286.

The product of its digits is 95256, while the sum is 43.

The square root of 1121769673 is about 33492.8301730385. The cubic root of 1121769673 is about 1039.0454978173.

The spelling of 1121769673 in words is "one billion, one hundred twenty-one million, seven hundred sixty-nine thousand, six hundred seventy-three".