230010521 has 8 divisors (see below), whose sum is σ = 249171720. Its totient is φ = 212315376.

The previous prime is 230010509. The next prime is 230010541. The reversal of 230010521 is 125010032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43414921 + 186595600 = 6589^2 + 13660^2 .

It is not a de Polignac number, because 230010521 - 2⁶ = 230010457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230010496 and 230010505.

It is not an unprimeable number, because it can be changed into a prime (230010541) 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 7 ways as a sum of consecutive naturals, for example, 50150 + ... + 54543.

It is an arithmetic number, because the mean of its divisors is an integer number (31146465).

Almost surely, 2^230010521 is an apocalyptic number.

It is an amenable number.

230010521 is a deficient number, since it is larger than the sum of its proper divisors (19161199).

230010521 is an equidigital number, since it uses as much as digits as its factorization.

230010521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104732 (or 104706 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 230010521 is about 15166.0977512345. The cubic root of 230010521 is about 612.7019096101.

Adding to 230010521 its reverse (125010032), we get a palindrome (355020553).

It can be divided in two parts, 2300 and 10521, that added together give a palindrome (12821).

The spelling of 230010521 in words is "two hundred thirty million, ten thousand, five hundred twenty-one".