144855593 has 2 divisors, whose sum is σ = 144855594. Its totient is φ = 144855592.

The previous prime is 144855539. The next prime is 144855611. The reversal of 144855593 is 395558441.

It is a happy number.

Together with previous prime (144855539) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128436889 + 16418704 = 11333^2 + 4052^2 .

It is a cyclic number.

It is not a de Polignac number, because 144855593 - 2²² = 140661289 is a prime.

It is not a weakly prime, because it can be changed into another prime (144851593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72427796 + 72427797.

It is an arithmetic number, because the mean of its divisors is an integer number (72427797).

Almost surely, 2^144855593 is an apocalyptic number.

It is an amenable number.

144855593 is a deficient number, since it is larger than the sum of its proper divisors (1).

144855593 is an equidigital number, since it uses as much as digits as its factorization.

144855593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 44.

The square root of 144855593 is about 12035.5969108308. The cubic root of 144855593 is about 525.1843259035.

The spelling of 144855593 in words is "one hundred forty-four million, eight hundred fifty-five thousand, five hundred ninety-three".