144364637 has 2 divisors, whose sum is σ = 144364638. Its totient is φ = 144364636.

The previous prime is 144364621. The next prime is 144364643. The reversal of 144364637 is 736463441.

It is a happy number.

144364637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142898116 + 1466521 = 11954^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 144364637 - 2⁴ = 144364621 is a prime.

It is a super-2 number, since 2×144364637² = 41682296832283538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144364637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144364667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72182318 + 72182319.

It is an arithmetic number, because the mean of its divisors is an integer number (72182319).

Almost surely, 2^144364637 is an apocalyptic number.

It is an amenable number.

144364637 is a deficient number, since it is larger than the sum of its proper divisors (1).

144364637 is an equidigital number, since it uses as much as digits as its factorization.

144364637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 38.

The square root of 144364637 is about 12015.1836024257. The cubic root of 144364637 is about 524.5903222704.

The spelling of 144364637 in words is "one hundred forty-four million, three hundred sixty-four thousand, six hundred thirty-seven".