1144549843 has 2 divisors, whose sum is σ = 1144549844. Its totient is φ = 1144549842.

The previous prime is 1144549817. The next prime is 1144549849. The reversal of 1144549843 is 3489454411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144549843 - 2²⁹ = 607678931 is a prime.

It is a super-2 number, since 2×1144549843² = 2619988686222649298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1144549843.

It is not a weakly prime, because it can be changed into another prime (1144549849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572274921 + 572274922.

It is an arithmetic number, because the mean of its divisors is an integer number (572274922).

Almost surely, 2^1144549843 is an apocalyptic number.

1144549843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144549843 is an equidigital number, since it uses as much as digits as its factorization.

1144549843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 43.

The square root of 1144549843 is about 33831.1962986827. The cubic root of 1144549843 is about 1046.0318381290.

The spelling of 1144549843 in words is "one billion, one hundred forty-four million, five hundred forty-nine thousand, eight hundred forty-three".