145235039 has 2 divisors, whose sum is σ = 145235040. Its totient is φ = 145235038.

The previous prime is 145235023. The next prime is 145235081. The reversal of 145235039 is 930532541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145235039 - 2⁴ = 145235023 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 145234996 and 145235014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145235089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72617519 + 72617520.

It is an arithmetic number, because the mean of its divisors is an integer number (72617520).

Almost surely, 2^145235039 is an apocalyptic number.

145235039 is a deficient number, since it is larger than the sum of its proper divisors (1).

145235039 is an equidigital number, since it uses as much as digits as its factorization.

145235039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 145235039 is about 12051.3500903426. The cubic root of 145235039 is about 525.6424956297.

The spelling of 145235039 in words is "one hundred forty-five million, two hundred thirty-five thousand, thirty-nine".