230515533 has 12 divisors (see below), whose sum is σ = 334694620. Its totient is φ = 152879616.

The previous prime is 230515511. The next prime is 230515567. The reversal of 230515533 is 335515032.

It can be written as a sum of positive squares in 2 ways, for example, as 117029124 + 113486409 = 10818^2 + 10653^2 .

It is not a de Polignac number, because 230515533 - 2⁵ = 230515501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230515497 and 230515506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230515583) 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 11 ways as a sum of consecutive naturals, for example, 64618 + ... + 68091.

Almost surely, 2^230515533 is an apocalyptic number.

It is an amenable number.

230515533 is a deficient number, since it is larger than the sum of its proper divisors (104179087).

230515533 is a wasteful number, since it uses less digits than its factorization.

230515533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132908 (or 132905 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 230515533 is about 15182.7379941827. The cubic root of 230515533 is about 613.1499987313.

The spelling of 230515533 in words is "two hundred thirty million, five hundred fifteen thousand, five hundred thirty-three".