1143874279 has 2 divisors, whose sum is σ = 1143874280. Its totient is φ = 1143874278.

The previous prime is 1143874267. The next prime is 1143874331. The reversal of 1143874279 is 9724783411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143874279 - 2⁵ = 1143874247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143874219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571937139 + 571937140.

It is an arithmetic number, because the mean of its divisors is an integer number (571937140).

Almost surely, 2^1143874279 is an apocalyptic number.

1143874279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143874279 is an equidigital number, since it uses as much as digits as its factorization.

1143874279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 1143874279 is about 33821.2104898686. The cubic root of 1143874279 is about 1045.8259928537.

The spelling of 1143874279 in words is "one billion, one hundred forty-three million, eight hundred seventy-four thousand, two hundred seventy-nine".