145282239 has 12 divisors (see below), whose sum is σ = 215524296. Its totient is φ = 94236912.

The previous prime is 145282231. The next prime is 145282243. The reversal of 145282239 is 932282541.

It is a happy number.

145282239 is a `hidden beast` number, since 145 + 282 + 239 = 666.

It is not a de Polignac number, because 145282239 - 2³ = 145282231 is a prime.

It is a super-2 number, since 2×145282239² = 42213857937706242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145282231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217809 + ... + 218474.

It is an arithmetic number, because the mean of its divisors is an integer number (17960358).

Almost surely, 2^145282239 is an apocalyptic number.

145282239 is a deficient number, since it is larger than the sum of its proper divisors (70242057).

145282239 is a wasteful number, since it uses less digits than its factorization.

145282239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436326 (or 436323 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 145282239 is about 12053.3082180786. The cubic root of 145282239 is about 525.6994323917.

The spelling of 145282239 in words is "one hundred forty-five million, two hundred eighty-two thousand, two hundred thirty-nine".