145105369 has 2 divisors, whose sum is σ = 145105370. Its totient is φ = 145105368.

The previous prime is 145105351. The next prime is 145105417. The reversal of 145105369 is 963501541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133633600 + 11471769 = 11560^2 + 3387^2 .

It is an emirp because it is prime and its reverse (963501541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145105369 - 2¹⁹ = 144581081 is a prime.

It is a super-2 number, since 2×145105369² = 42111136225252322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145105339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72552684 + 72552685.

It is an arithmetic number, because the mean of its divisors is an integer number (72552685).

Almost surely, 2^145105369 is an apocalyptic number.

It is an amenable number.

145105369 is a deficient number, since it is larger than the sum of its proper divisors (1).

145105369 is an equidigital number, since it uses as much as digits as its factorization.

145105369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 145105369 is about 12045.9689938170. The cubic root of 145105369 is about 525.4860128276.

The spelling of 145105369 in words is "one hundred forty-five million, one hundred five thousand, three hundred sixty-nine".