144240137 has 2 divisors, whose sum is σ = 144240138. Its totient is φ = 144240136.

The previous prime is 144240127. The next prime is 144240181. The reversal of 144240137 is 731042441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142539721 + 1700416 = 11939^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 144240137 - 2¹⁶ = 144174601 is a prime.

It is not a weakly prime, because it can be changed into another prime (144240127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72120068 + 72120069.

It is an arithmetic number, because the mean of its divisors is an integer number (72120069).

Almost surely, 2^144240137 is an apocalyptic number.

It is an amenable number.

144240137 is a deficient number, since it is larger than the sum of its proper divisors (1).

144240137 is an equidigital number, since it uses as much as digits as its factorization.

144240137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 144240137 is about 12010.0015403829. The cubic root of 144240137 is about 524.4394767440.

Adding to 144240137 its reverse (731042441), we get a palindrome (875282578).

The spelling of 144240137 in words is "one hundred forty-four million, two hundred forty thousand, one hundred thirty-seven".