230542533 has 18 divisors (see below), whose sum is σ = 360594546. Its totient is φ = 141871392.

The previous prime is 230542517. The next prime is 230542537. The reversal of 230542533 is 335245032.

230542533 is a `hidden beast` number, since 230 + 5 + 425 + 3 + 3 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 19044 + 230523489 = 138^2 + 15183^2 .

It is not a de Polignac number, because 230542533 - 2⁴ = 230542517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230542497 and 230542506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230542537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 74266 + ... + 77307.

Almost surely, 2^230542533 is an apocalyptic number.

It is an amenable number.

230542533 is a deficient number, since it is larger than the sum of its proper divisors (130052013).

230542533 is a wasteful number, since it uses less digits than its factorization.

230542533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151605 (or 151589 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 230542533 is about 15183.6271358329. The cubic root of 230542533 is about 613.1739369644.

Adding to 230542533 its reverse (335245032), we get a palindrome (565787565).

The spelling of 230542533 in words is "two hundred thirty million, five hundred forty-two thousand, five hundred thirty-three".