144744893 has 2 divisors, whose sum is σ = 144744894. Its totient is φ = 144744892.

The previous prime is 144744881. The next prime is 144744917. The reversal of 144744893 is 398447441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142515844 + 2229049 = 11938^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 144744893 - 2¹⁰ = 144743869 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144744823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72372446 + 72372447.

It is an arithmetic number, because the mean of its divisors is an integer number (72372447).

Almost surely, 2^144744893 is an apocalyptic number.

It is an amenable number.

144744893 is a deficient number, since it is larger than the sum of its proper divisors (1).

144744893 is an equidigital number, since it uses as much as digits as its factorization.

144744893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 44.

The square root of 144744893 is about 12030.9971739669. The cubic root of 144744893 is about 525.0505082170.

The spelling of 144744893 in words is "one hundred forty-four million, seven hundred forty-four thousand, eight hundred ninety-three".