1129819793 has 4 divisors (see below), whose sum is σ = 1153858560. Its totient is φ = 1105781028.

The previous prime is 1129819723. The next prime is 1129819799. The reversal of 1129819793 is 3979189211.

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: 3979189211 = 263 ⋅15129997.

It is a cyclic number.

It is not a de Polignac number, because 1129819793 - 2²⁴ = 1113042577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1129819799) 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, 12019313 + ... + 12019406.

It is an arithmetic number, because the mean of its divisors is an integer number (288464640).

Almost surely, 2^1129819793 is an apocalyptic number.

It is an amenable number.

1129819793 is a deficient number, since it is larger than the sum of its proper divisors (24038767).

1129819793 is an equidigital number, since it uses as much as digits as its factorization.

1129819793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24038766.

The product of its digits is 244944, while the sum is 50.

The square root of 1129819793 is about 33612.7921036025. The cubic root of 1129819793 is about 1041.5250656061.

The spelling of 1129819793 in words is "one billion, one hundred twenty-nine million, eight hundred nineteen thousand, seven hundred ninety-three".