1143422773 has 8 divisors (see below), whose sum is σ = 1163412000. Its totient is φ = 1123453968.

The previous prime is 1143422747. The next prime is 1143422789. The reversal of 1143422773 is 3772243411.

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

It is a cyclic number.

It is not a de Polignac number, because 1143422773 - 2⁵ = 1143422741 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 (1143422723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146590 + ... + 154192.

It is an arithmetic number, because the mean of its divisors is an integer number (145426500).

Almost surely, 2^1143422773 is an apocalyptic number.

It is an amenable number.

1143422773 is a deficient number, since it is larger than the sum of its proper divisors (19989227).

1143422773 is an equidigital number, since it uses as much as digits as its factorization.

1143422773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211.

The product of its digits is 28224, while the sum is 34.

The square root of 1143422773 is about 33814.5349369173. The cubic root of 1143422773 is about 1045.6883731692.

The spelling of 1143422773 in words is "one billion, one hundred forty-three million, four hundred twenty-two thousand, seven hundred seventy-three".