1144161679 has 4 divisors (see below), whose sum is σ = 1183615560. Its totient is φ = 1104707800.

The previous prime is 1144161649. The next prime is 1144161713. The reversal of 1144161679 is 9761614411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9761614411 = 25031 ⋅389981.

It is a cyclic number.

It is not a de Polignac number, because 1144161679 - 2⁵ = 1144161647 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 (1144161649) 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 in 3 ways as a sum of consecutive naturals, for example, 19726897 + ... + 19726954.

It is an arithmetic number, because the mean of its divisors is an integer number (295903890).

Almost surely, 2^1144161679 is an apocalyptic number.

1144161679 is a deficient number, since it is larger than the sum of its proper divisors (39453881).

1144161679 is an equidigital number, since it uses as much as digits as its factorization.

1144161679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39453880.

The product of its digits is 36288, while the sum is 40.

The square root of 1144161679 is about 33825.4590360574. The cubic root of 1144161679 is about 1045.9135739298.

The spelling of 1144161679 in words is "one billion, one hundred forty-four million, one hundred sixty-one thousand, six hundred seventy-nine".