144345739 has 2 divisors, whose sum is σ = 144345740. Its totient is φ = 144345738.

The previous prime is 144345727. The next prime is 144345743. The reversal of 144345739 is 937543441.

It is a strong prime.

It is an emirp because it is prime and its reverse (937543441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144345739 - 2⁷ = 144345611 is a prime.

It is a super-2 number, since 2×144345739² = 41671384734912242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144345239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72172869 + 72172870.

It is an arithmetic number, because the mean of its divisors is an integer number (72172870).

Almost surely, 2^144345739 is an apocalyptic number.

144345739 is a deficient number, since it is larger than the sum of its proper divisors (1).

144345739 is an equidigital number, since it uses as much as digits as its factorization.

144345739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 144345739 is about 12014.3971550802. The cubic root of 144345739 is about 524.5674308367.

The spelling of 144345739 in words is "one hundred forty-four million, three hundred forty-five thousand, seven hundred thirty-nine".