144074993 has 2 divisors, whose sum is σ = 144074994. Its totient is φ = 144074992.

The previous prime is 144074981. The next prime is 144074999. The reversal of 144074993 is 399470441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113912929 + 30162064 = 10673^2 + 5492^2 .

It is a cyclic number.

It is not a de Polignac number, because 144074993 - 2⁴ = 144074977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144074993.

It is not a weakly prime, because it can be changed into another prime (144074999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72037496 + 72037497.

It is an arithmetic number, because the mean of its divisors is an integer number (72037497).

Almost surely, 2^144074993 is an apocalyptic number.

It is an amenable number.

144074993 is a deficient number, since it is larger than the sum of its proper divisors (1).

144074993 is an equidigital number, since it uses as much as digits as its factorization.

144074993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 144074993 is about 12003.1243016141. The cubic root of 144074993 is about 524.2392525230.

The spelling of 144074993 in words is "one hundred forty-four million, seventy-four thousand, nine hundred ninety-three".