9144739 has 2 divisors, whose sum is σ = 9144740. Its totient is φ = 9144738.

The previous prime is 9144727. The next prime is 9144749. The reversal of 9144739 is 9374419.

9144739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9144739 - 2¹¹ = 9142691 is a prime.

It is a Chen prime.

9144739 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9144698 and 9144707.

It is not a weakly prime, because it can be changed into another prime (9144749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572369 + 4572370.

It is an arithmetic number, because the mean of its divisors is an integer number (4572370).

Almost surely, 2^9144739 is an apocalyptic number.

9144739 is a deficient number, since it is larger than the sum of its proper divisors (1).

9144739 is an equidigital number, since it uses as much as digits as its factorization.

9144739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 9144739 is about 3024.0269509381. The cubic root of 9144739 is about 209.1175288844.

The spelling of 9144739 in words is "nine million, one hundred forty-four thousand, seven hundred thirty-nine".