230186561 has 4 divisors (see below), whose sum is σ = 251112624. Its totient is φ = 209260500.

The previous prime is 230186557. The next prime is 230186603. The reversal of 230186561 is 165681032.

It is a happy number.

230186561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230186561 - 2² = 230186557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230186521) 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, 10463015 + ... + 10463036.

It is an arithmetic number, because the mean of its divisors is an integer number (62778156).

Almost surely, 2^230186561 is an apocalyptic number.

It is an amenable number.

230186561 is a deficient number, since it is larger than the sum of its proper divisors (20926063).

230186561 is a wasteful number, since it uses less digits than its factorization.

230186561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20926062.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 230186561 is about 15171.9003753650. The cubic root of 230186561 is about 612.8581815033.

The spelling of 230186561 in words is "two hundred thirty million, one hundred eighty-six thousand, five hundred sixty-one".