145424444569 has 2 divisors, whose sum is σ = 145424444570. Its totient is φ = 145424444568.

The previous prime is 145424444521. The next prime is 145424444579. The reversal of 145424444569 is 965444424541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136890380169 + 8534064400 = 369987^2 + 92380^2 .

It is a cyclic number.

It is not a de Polignac number, because 145424444569 - 2⁹ = 145424444057 is a prime.

It is a super-2 number, since 2×145424444569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145424444579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72712222284 + 72712222285.

It is an arithmetic number, because the mean of its divisors is an integer number (72712222285).

Almost surely, 2^145424444569 is an apocalyptic number.

It is an amenable number.

145424444569 is a deficient number, since it is larger than the sum of its proper divisors (1).

145424444569 is an equidigital number, since it uses as much as digits as its factorization.

145424444569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11059200, while the sum is 52.

The spelling of 145424444569 in words is "one hundred forty-five billion, four hundred twenty-four million, four hundred forty-four thousand, five hundred sixty-nine".