1142143199 has 8 divisors (see below), whose sum is σ = 1198316160. Its totient is φ = 1087178400.

The previous prime is 1142143183. The next prime is 1142143201. The reversal of 1142143199 is 9913412411.

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 1142143199 - 2⁴ = 1142143183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142143139) 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, 300104 + ... + 303885.

It is an arithmetic number, because the mean of its divisors is an integer number (149789520).

Almost surely, 2^1142143199 is an apocalyptic number.

1142143199 is a deficient number, since it is larger than the sum of its proper divisors (56172961).

1142143199 is an equidigital number, since it uses as much as digits as its factorization.

1142143199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604081.

The product of its digits is 7776, while the sum is 35.

The square root of 1142143199 is about 33795.6091674643. The cubic root of 1142143199 is about 1045.2981602294.

The spelling of 1142143199 in words is "one billion, one hundred forty-two million, one hundred forty-three thousand, one hundred ninety-nine".