144575747669 has 2 divisors, whose sum is σ = 144575747670. Its totient is φ = 144575747668.

The previous prime is 144575747581. The next prime is 144575747731. The reversal of 144575747669 is 966747575441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107148202225 + 37427545444 = 327335^2 + 193462^2 .

It is a cyclic number.

It is not a de Polignac number, because 144575747669 - 2²⁸ = 144307312213 is a prime.

It is a super-2 number, since 2×144575747669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144575747269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72287873834 + 72287873835.

It is an arithmetic number, because the mean of its divisors is an integer number (72287873835).

Almost surely, 2^144575747669 is an apocalyptic number.

It is an amenable number.

144575747669 is a deficient number, since it is larger than the sum of its proper divisors (1).

144575747669 is an equidigital number, since it uses as much as digits as its factorization.

144575747669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 177811200, while the sum is 65.

The spelling of 144575747669 in words is "one hundred forty-four billion, five hundred seventy-five million, seven hundred forty-seven thousand, six hundred sixty-nine".