144365739 has 16 divisors (see below), whose sum is σ = 221392128. Its totient is φ = 81967392.

The previous prime is 144365731. The next prime is 144365759. The reversal of 144365739 is 937563441.

144365739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144365739 - 2³ = 144365731 is a prime.

It is a super-2 number, since 2×144365739² = 41682933194032242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144365739.

It is not an unprimeable number, because it can be changed into a prime (144365731) 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, 18597 + ... + 25190.

It is an arithmetic number, because the mean of its divisors is an integer number (13837008).

Almost surely, 2^144365739 is an apocalyptic number.

144365739 is a deficient number, since it is larger than the sum of its proper divisors (77026389).

144365739 is a wasteful number, since it uses less digits than its factorization.

144365739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43954.

The product of its digits is 272160, while the sum is 42.

The square root of 144365739 is about 12015.2294609799. The cubic root of 144365739 is about 524.5916570780.

The spelling of 144365739 in words is "one hundred forty-four million, three hundred sixty-five thousand, seven hundred thirty-nine".