144402443 has 2 divisors, whose sum is σ = 144402444. Its totient is φ = 144402442.

The previous prime is 144402439. The next prime is 144402481. The reversal of 144402443 is 344204441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144402443 - 2² = 144402439 is a prime.

It is not a weakly prime, because it can be changed into another prime (144402493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72201221 + 72201222.

It is an arithmetic number, because the mean of its divisors is an integer number (72201222).

Almost surely, 2^144402443 is an apocalyptic number.

144402443 is a deficient number, since it is larger than the sum of its proper divisors (1).

144402443 is an equidigital number, since it uses as much as digits as its factorization.

144402443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 144402443 is about 12016.7567587931. The cubic root of 144402443 is about 524.6361112557.

Adding to 144402443 its reverse (344204441), we get a palindrome (488606884).

The spelling of 144402443 in words is "one hundred forty-four million, four hundred two thousand, four hundred forty-three".