144188537 has 2 divisors, whose sum is σ = 144188538. Its totient is φ = 144188536.

The previous prime is 144188521. The next prime is 144188669. The reversal of 144188537 is 735881441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 64336441 = 8936^2 + 8021^2 .

It is a cyclic number.

It is not a de Polignac number, because 144188537 - 2⁴ = 144188521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144188494 and 144188503.

It is not a weakly prime, because it can be changed into another prime (144488537) 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 as a sum of consecutive naturals, namely, 72094268 + 72094269.

It is an arithmetic number, because the mean of its divisors is an integer number (72094269).

Almost surely, 2^144188537 is an apocalyptic number.

It is an amenable number.

144188537 is a deficient number, since it is larger than the sum of its proper divisors (1).

144188537 is an equidigital number, since it uses as much as digits as its factorization.

144188537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 41.

The square root of 144188537 is about 12007.8531386755. The cubic root of 144188537 is about 524.3769321912.

The spelling of 144188537 in words is "one hundred forty-four million, one hundred eighty-eight thousand, five hundred thirty-seven".