144739241 has 4 divisors (see below), whose sum is σ = 153253332. Its totient is φ = 136225152.

The previous prime is 144739223. The next prime is 144739289. The reversal of 144739241 is 142937441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142937441 = 1307 ⋅109363.

It can be written as a sum of positive squares in 2 ways, for example, as 134467216 + 10272025 = 11596^2 + 3205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144739241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144739201) 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 in 3 ways as a sum of consecutive naturals, for example, 4257020 + ... + 4257053.

It is an arithmetic number, because the mean of its divisors is an integer number (38313333).

Almost surely, 2^144739241 is an apocalyptic number.

It is an amenable number.

144739241 is a deficient number, since it is larger than the sum of its proper divisors (8514091).

144739241 is an equidigital number, since it uses as much as digits as its factorization.

144739241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514090.

The product of its digits is 24192, while the sum is 35.

The square root of 144739241 is about 12030.7622784261. The cubic root of 144739241 is about 525.0436740689.

The spelling of 144739241 in words is "one hundred forty-four million, seven hundred thirty-nine thousand, two hundred forty-one".