144534569 has 2 divisors, whose sum is σ = 144534570. Its totient is φ = 144534568.

The previous prime is 144534547. The next prime is 144534581. The reversal of 144534569 is 965435441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143688169 + 846400 = 11987^2 + 920^2 .

It is a cyclic number.

It is not a de Polignac number, because 144534569 - 2¹⁶ = 144469033 is a prime.

It is a super-2 number, since 2×144534569² = 41780483272031522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144534769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72267284 + 72267285.

It is an arithmetic number, because the mean of its divisors is an integer number (72267285).

Almost surely, 2^144534569 is an apocalyptic number.

It is an amenable number.

144534569 is a deficient number, since it is larger than the sum of its proper divisors (1).

144534569 is an equidigital number, since it uses as much as digits as its factorization.

144534569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 144534569 is about 12022.2530750272. The cubic root of 144534569 is about 524.7960737847.

The spelling of 144534569 in words is "one hundred forty-four million, five hundred thirty-four thousand, five hundred sixty-nine".