1144381867 has 2 divisors, whose sum is σ = 1144381868. Its totient is φ = 1144381866.

The previous prime is 1144381831. The next prime is 1144381939. The reversal of 1144381867 is 7681834411.

It is a weak prime.

It is an emirp because it is prime and its reverse (7681834411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144381867 - 2⁷ = 1144381739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144381067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572190933 + 572190934.

It is an arithmetic number, because the mean of its divisors is an integer number (572190934).

Almost surely, 2^1144381867 is an apocalyptic number.

1144381867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144381867 is an equidigital number, since it uses as much as digits as its factorization.

1144381867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 1144381867 is about 33828.7136468415. The cubic root of 1144381867 is about 1045.9806631797.

The spelling of 1144381867 in words is "one billion, one hundred forty-four million, three hundred eighty-one thousand, eight hundred sixty-seven".