1144722159 has 16 divisors (see below), whose sum is σ = 1938154240. Its totient is φ = 654126840.

The previous prime is 1144722077. The next prime is 1144722181. The reversal of 1144722159 is 9512274411.

1144722159 is a `hidden beast` number, since 114 + 472 + 21 + 59 = 666.

It is not a de Polignac number, because 1144722159 - 2⁷ = 1144722031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144722199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3028177 + ... + 3028554.

It is an arithmetic number, because the mean of its divisors is an integer number (121134640).

Almost surely, 2^1144722159 is an apocalyptic number.

1144722159 is a deficient number, since it is larger than the sum of its proper divisors (793432081).

1144722159 is an equidigital number, since it uses as much as digits as its factorization.

1144722159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056747 (or 6056741 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1144722159 is about 33833.7429055669. The cubic root of 1144722159 is about 1046.0843300842.

The spelling of 1144722159 in words is "one billion, one hundred forty-four million, seven hundred twenty-two thousand, one hundred fifty-nine".