145000439 has 2 divisors, whose sum is σ = 145000440. Its totient is φ = 145000438.

The previous prime is 145000433. The next prime is 145000481. The reversal of 145000439 is 934000541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145000439 - 2⁸ = 145000183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145000433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72500219 + 72500220.

It is an arithmetic number, because the mean of its divisors is an integer number (72500220).

Almost surely, 2^145000439 is an apocalyptic number.

145000439 is a deficient number, since it is larger than the sum of its proper divisors (1).

145000439 is an equidigital number, since it uses as much as digits as its factorization.

145000439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 145000439 is about 12041.6128072613. The cubic root of 145000439 is about 525.3593174384.

The spelling of 145000439 in words is "one hundred forty-five million, four hundred thirty-nine", and thus it is an aban number.