144743231 has 2 divisors, whose sum is σ = 144743232. Its totient is φ = 144743230.

The previous prime is 144743191. The next prime is 144743233. The reversal of 144743231 is 132347441.

144743231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144743231 - 2²² = 140548927 is a prime.

It is a super-2 number, since 2×144743231² = 41901205840638722, which contains 22 as substring.

Together with 144743233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 144743194 and 144743203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144743233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72371615 + 72371616.

It is an arithmetic number, because the mean of its divisors is an integer number (72371616).

Almost surely, 2^144743231 is an apocalyptic number.

144743231 is a deficient number, since it is larger than the sum of its proper divisors (1).

144743231 is an equidigital number, since it uses as much as digits as its factorization.

144743231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 144743231 is about 12030.9281021873. The cubic root of 144743231 is about 525.0484986187.

The spelling of 144743231 in words is "one hundred forty-four million, seven hundred forty-three thousand, two hundred thirty-one".