144839793 has 32 divisors (see below), whose sum is σ = 238627840. Its totient is φ = 76282560.

The previous prime is 144839791. The next prime is 144839797. The reversal of 144839793 is 397938441.

It is a happy number.

It is not a de Polignac number, because 144839793 - 2¹ = 144839791 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144839791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9858 + ... + 19668.

It is an arithmetic number, because the mean of its divisors is an integer number (7457120).

Almost surely, 2^144839793 is an apocalyptic number.

It is an amenable number.

144839793 is a deficient number, since it is larger than the sum of its proper divisors (93788047).

144839793 is a wasteful number, since it uses less digits than its factorization.

144839793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9877.

The product of its digits is 653184, while the sum is 48.

The square root of 144839793 is about 12034.9405067080. The cubic root of 144839793 is about 525.1652305321.

The spelling of 144839793 in words is "one hundred forty-four million, eight hundred thirty-nine thousand, seven hundred ninety-three".