144213137 has 2 divisors, whose sum is σ = 144213138. Its totient is φ = 144213136.

The previous prime is 144213131. The next prime is 144213191. The reversal of 144213137 is 731312441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142468096 + 1745041 = 11936^2 + 1321^2 .

It is an emirp because it is prime and its reverse (731312441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144213137 - 2¹² = 144209041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144213131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72106568 + 72106569.

It is an arithmetic number, because the mean of its divisors is an integer number (72106569).

Almost surely, 2^144213137 is an apocalyptic number.

It is an amenable number.

144213137 is a deficient number, since it is larger than the sum of its proper divisors (1).

144213137 is an equidigital number, since it uses as much as digits as its factorization.

144213137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 144213137 is about 12008.8774246388. The cubic root of 144213137 is about 524.4067518040.

Adding to 144213137 its reverse (731312441), we get a palindrome (875525578).

The spelling of 144213137 in words is "one hundred forty-four million, two hundred thirteen thousand, one hundred thirty-seven".