1143450771 has 8 divisors (see below), whose sum is σ = 1526618064. Its totient is φ = 761292000.

The previous prime is 1143450751. The next prime is 1143450793. The reversal of 1143450771 is 1770543411.

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 1143450771 - 2⁷ = 1143450643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143450731) 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, 249480 + ... + 254021.

It is an arithmetic number, because the mean of its divisors is an integer number (190827258).

Almost surely, 2^1143450771 is an apocalyptic number.

1143450771 is a deficient number, since it is larger than the sum of its proper divisors (383167293).

1143450771 is an equidigital number, since it uses as much as digits as its factorization.

1143450771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504261.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 1143450771 is about 33814.9489279520. The cubic root of 1143450771 is about 1045.6969080537.

The spelling of 1143450771 in words is "one billion, one hundred forty-three million, four hundred fifty thousand, seven hundred seventy-one".