145839224 has 16 divisors (see below), whose sum is σ = 273634200. Its totient is φ = 72870112.

The previous prime is 145839223. The next prime is 145839229. The reversal of 145839224 is 422938541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145839223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8339 + ... + 19005.

Almost surely, 2^145839224 is an apocalyptic number.

It is an amenable number.

145839224 is a deficient number, since it is larger than the sum of its proper divisors (127794976).

145839224 is a wasteful number, since it uses less digits than its factorization.

145839224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12382 (or 12378 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 145839224 is about 12076.3911827996. The cubic root of 145839224 is about 526.3703868653.

The spelling of 145839224 in words is "one hundred forty-five million, eight hundred thirty-nine thousand, two hundred twenty-four".