144454469 has 2 divisors, whose sum is σ = 144454470. Its totient is φ = 144454468.

The previous prime is 144454417. The next prime is 144454477. The reversal of 144454469 is 964454441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144240100 + 214369 = 12010^2 + 463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144454469 is a prime.

It is a super-2 number, since 2×144454469² = 41734187228143922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144454069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72227234 + 72227235.

It is an arithmetic number, because the mean of its divisors is an integer number (72227235).

Almost surely, 2^144454469 is an apocalyptic number.

It is an amenable number.

144454469 is a deficient number, since it is larger than the sum of its proper divisors (1).

144454469 is an equidigital number, since it uses as much as digits as its factorization.

144454469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 41.

The square root of 144454469 is about 12018.9212910311. The cubic root of 144454469 is about 524.6991098229.

The spelling of 144454469 in words is "one hundred forty-four million, four hundred fifty-four thousand, four hundred sixty-nine".