145314569 has 2 divisors, whose sum is σ = 145314570. Its totient is φ = 145314568.

The previous prime is 145314551. The next prime is 145314571. The reversal of 145314569 is 965413541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144841225 + 473344 = 12035^2 + 688^2 .

It is a cyclic number.

It is not a de Polignac number, because 145314569 - 2¹⁶ = 145249033 is a prime.

It is a super-2 number, since 2×145314569² = 42232647927311522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 145314571, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (145314509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72657284 + 72657285.

It is an arithmetic number, because the mean of its divisors is an integer number (72657285).

Almost surely, 2^145314569 is an apocalyptic number.

It is an amenable number.

145314569 is a deficient number, since it is larger than the sum of its proper divisors (1).

145314569 is an equidigital number, since it uses as much as digits as its factorization.

145314569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 145314569 is about 12054.6492690580. The cubic root of 145314569 is about 525.7384245452.

The spelling of 145314569 in words is "one hundred forty-five million, three hundred fourteen thousand, five hundred sixty-nine".