146285239 has 2 divisors, whose sum is σ = 146285240. Its totient is φ = 146285238.

The previous prime is 146285219. The next prime is 146285257. The reversal of 146285239 is 932582641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146285239 - 2⁵ = 146285207 is a prime.

It is a super-2 number, since 2×146285239² = 42798742298574242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146285219) 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, 73142619 + 73142620.

It is an arithmetic number, because the mean of its divisors is an integer number (73142620).

Almost surely, 2^146285239 is an apocalyptic number.

146285239 is a deficient number, since it is larger than the sum of its proper divisors (1).

146285239 is an equidigital number, since it uses as much as digits as its factorization.

146285239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 146285239 is about 12094.8434880324. The cubic root of 146285239 is about 526.9064341617.

The spelling of 146285239 in words is "one hundred forty-six million, two hundred eighty-five thousand, two hundred thirty-nine".