144206537 has 2 divisors, whose sum is σ = 144206538. Its totient is φ = 144206536.

The previous prime is 144206519. The next prime is 144206539. The reversal of 144206537 is 735602441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134119561 + 10086976 = 11581^2 + 3176^2 .

It is a cyclic number.

It is not a de Polignac number, because 144206537 - 2⁸ = 144206281 is a prime.

Together with 144206539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144206539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72103268 + 72103269.

It is an arithmetic number, because the mean of its divisors is an integer number (72103269).

Almost surely, 2^144206537 is an apocalyptic number.

It is an amenable number.

144206537 is a deficient number, since it is larger than the sum of its proper divisors (1).

144206537 is an equidigital number, since it uses as much as digits as its factorization.

144206537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 144206537 is about 12008.6026247853. The cubic root of 144206537 is about 524.3987517529.

Adding to 144206537 its reverse (735602441), we get a palindrome (879808978).

It can be divided in two parts, 144 and 206537, that multiplied together give a triangular number (29741328 = T₇₇₁₂).

The spelling of 144206537 in words is "one hundred forty-four million, two hundred six thousand, five hundred thirty-seven".