144404387 has 2 divisors, whose sum is σ = 144404388. Its totient is φ = 144404386.

The previous prime is 144404371. The next prime is 144404401. The reversal of 144404387 is 783404441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144404387 - 2⁴ = 144404371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144404317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72202193 + 72202194.

It is an arithmetic number, because the mean of its divisors is an integer number (72202194).

Almost surely, 2^144404387 is an apocalyptic number.

144404387 is a deficient number, since it is larger than the sum of its proper divisors (1).

144404387 is an equidigital number, since it uses as much as digits as its factorization.

144404387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 144404387 is about 12016.8376455705. The cubic root of 144404387 is about 524.6384655280.

The spelling of 144404387 in words is "one hundred forty-four million, four hundred four thousand, three hundred eighty-seven".