144647429 has 2 divisors, whose sum is σ = 144647430. Its totient is φ = 144647428.

The previous prime is 144647413. The next prime is 144647443. The reversal of 144647429 is 924746441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88322404 + 56325025 = 9398^2 + 7505^2 .

It is a cyclic number.

It is not a de Polignac number, because 144647429 - 2⁴ = 144647413 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 (144647029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72323714 + 72323715.

It is an arithmetic number, because the mean of its divisors is an integer number (72323715).

Almost surely, 2^144647429 is an apocalyptic number.

It is an amenable number.

144647429 is a deficient number, since it is larger than the sum of its proper divisors (1).

144647429 is an equidigital number, since it uses as much as digits as its factorization.

144647429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The square root of 144647429 is about 12026.9459548133. The cubic root of 144647429 is about 524.9326341378.

The spelling of 144647429 in words is "one hundred forty-four million, six hundred forty-seven thousand, four hundred twenty-nine".