145304329 has 2 divisors, whose sum is σ = 145304330. Its totient is φ = 145304328.

The previous prime is 145304311. The next prime is 145304339. The reversal of 145304329 is 923403541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109244304 + 36060025 = 10452^2 + 6005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145304329 is a prime.

It is a super-2 number, since 2×145304329² = 42226696052280482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145304329.

It is not a weakly prime, because it can be changed into another prime (145304339) 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, 72652164 + 72652165.

It is an arithmetic number, because the mean of its divisors is an integer number (72652165).

Almost surely, 2^145304329 is an apocalyptic number.

It is an amenable number.

145304329 is a deficient number, since it is larger than the sum of its proper divisors (1).

145304329 is an equidigital number, since it uses as much as digits as its factorization.

145304329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 145304329 is about 12054.2245291848. The cubic root of 145304329 is about 525.7260750427.

The spelling of 145304329 in words is "one hundred forty-five million, three hundred four thousand, three hundred twenty-nine".