1144597839 has 64 divisors (see below), whose sum is σ = 2001300480. Its totient is φ = 564480000.

The previous prime is 1144597823. The next prime is 1144597859. The reversal of 1144597839 is 9387954411.

It is not a de Polignac number, because 1144597839 - 2⁴ = 1144597823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144597791 and 1144597800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144597819) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 407239 + ... + 410039.

It is an arithmetic number, because the mean of its divisors is an integer number (31270320).

Almost surely, 2^1144597839 is an apocalyptic number.

1144597839 is a deficient number, since it is larger than the sum of its proper divisors (856702641).

1144597839 is a wasteful number, since it uses less digits than its factorization.

1144597839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912.

The product of its digits is 1088640, while the sum is 51.

The square root of 1144597839 is about 33831.9056365437. The cubic root of 1144597839 is about 1046.0464594938.

The spelling of 1144597839 in words is "one billion, one hundred forty-four million, five hundred ninety-seven thousand, eight hundred thirty-nine".