1143178471 has 2 divisors, whose sum is σ = 1143178472. Its totient is φ = 1143178470.

The previous prime is 1143178457. The next prime is 1143178483. The reversal of 1143178471 is 1748713411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143178471 - 2⁷ = 1143178343 is a prime.

It is a super-3 number, since 3×1143178471³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1143178471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143178451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571589235 + 571589236.

It is an arithmetic number, because the mean of its divisors is an integer number (571589236).

Almost surely, 2^1143178471 is an apocalyptic number.

1143178471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143178471 is an equidigital number, since it uses as much as digits as its factorization.

1143178471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 37.

The square root of 1143178471 is about 33810.9223624556. The cubic root of 1143178471 is about 1045.6138944598.

The spelling of 1143178471 in words is "one billion, one hundred forty-three million, one hundred seventy-eight thousand, four hundred seventy-one".