144348739 has 4 divisors (see below), whose sum is σ = 144435400. Its totient is φ = 144262080.

The previous prime is 144348731. The next prime is 144348749. The reversal of 144348739 is 937843441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 937843441 = 29 ⋅32339429.

It is a cyclic number.

It is not a de Polignac number, because 144348739 - 2³ = 144348731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144348695 and 144348704.

It is not an unprimeable number, because it can be changed into a prime (144348731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40782 + ... + 44179.

It is an arithmetic number, because the mean of its divisors is an integer number (36108850).

Almost surely, 2^144348739 is an apocalyptic number.

144348739 is a deficient number, since it is larger than the sum of its proper divisors (86661).

144348739 is an equidigital number, since it uses as much as digits as its factorization.

144348739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86660.

The product of its digits is 290304, while the sum is 43.

The square root of 144348739 is about 12014.5220046409. The cubic root of 144348739 is about 524.5710649156.

The spelling of 144348739 in words is "one hundred forty-four million, three hundred forty-eight thousand, seven hundred thirty-nine".