1143049807 has 2 divisors, whose sum is σ = 1143049808. Its totient is φ = 1143049806.

The previous prime is 1143049793. The next prime is 1143049849. The reversal of 1143049807 is 7089403411.

It is a weak prime.

It is an emirp because it is prime and its reverse (7089403411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143049807 is a prime.

It is a super-2 number, since 2×1143049807² = 2613125722565474498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143049867) 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, 571524903 + 571524904.

It is an arithmetic number, because the mean of its divisors is an integer number (571524904).

Almost surely, 2^1143049807 is an apocalyptic number.

1143049807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143049807 is an equidigital number, since it uses as much as digits as its factorization.

1143049807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1143049807 is about 33809.0196101573. The cubic root of 1143049807 is about 1045.5746652648.

The spelling of 1143049807 in words is "one billion, one hundred forty-three million, forty-nine thousand, eight hundred seven".