144863233 has 2 divisors, whose sum is σ = 144863234. Its totient is φ = 144863232.

The previous prime is 144863221. The next prime is 144863261. The reversal of 144863233 is 332368441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117332224 + 27531009 = 10832^2 + 5247^2 .

It is a cyclic number.

It is not a de Polignac number, because 144863233 - 2²¹ = 142766081 is a prime.

It is not a weakly prime, because it can be changed into another prime (144863333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72431616 + 72431617.

It is an arithmetic number, because the mean of its divisors is an integer number (72431617).

Almost surely, 2^144863233 is an apocalyptic number.

It is an amenable number.

144863233 is a deficient number, since it is larger than the sum of its proper divisors (1).

144863233 is an equidigital number, since it uses as much as digits as its factorization.

144863233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 144863233 is about 12035.9142984652. The cubic root of 144863233 is about 525.1935588636.

The spelling of 144863233 in words is "one hundred forty-four million, eight hundred sixty-three thousand, two hundred thirty-three".