1143782923 has 4 divisors (see below), whose sum is σ = 1146424888. Its totient is φ = 1141140960.

The previous prime is 1143782921. The next prime is 1143782993. The reversal of 1143782923 is 3292873411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1143782923 - 2¹ = 1143782921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143782921) 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, 1320333 + ... + 1321198.

It is an arithmetic number, because the mean of its divisors is an integer number (286606222).

Almost surely, 2^1143782923 is an apocalyptic number.

1143782923 is a deficient number, since it is larger than the sum of its proper divisors (2641965).

1143782923 is an equidigital number, since it uses as much as digits as its factorization.

1143782923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641964.

The product of its digits is 72576, while the sum is 40.

The square root of 1143782923 is about 33819.8598903071. The cubic root of 1143782923 is about 1045.7981503350.

The spelling of 1143782923 in words is "one billion, one hundred forty-three million, seven hundred eighty-two thousand, nine hundred twenty-three".