230935681 has 4 divisors (see below), whose sum is σ = 235293012. Its totient is φ = 226578352.

The previous prime is 230935673. The next prime is 230935697. The reversal of 230935681 is 186539032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116445681 + 114490000 = 10791^2 + 10700^2 .

It is a cyclic number.

It is not a de Polignac number, because 230935681 - 2³ = 230935673 is a prime.

It is a super-2 number, since 2×230935681² = 106662577517867522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230935681.

It is not an unprimeable number, because it can be changed into a prime (230935181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178586 + ... + 2178691.

It is an arithmetic number, because the mean of its divisors is an integer number (58823253).

Almost surely, 2^230935681 is an apocalyptic number.

It is an amenable number.

230935681 is a deficient number, since it is larger than the sum of its proper divisors (4357331).

230935681 is an equidigital number, since it uses as much as digits as its factorization.

230935681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357330.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 230935681 is about 15196.5680665076. The cubic root of 230935681 is about 613.5222909117.

The spelling of 230935681 in words is "two hundred thirty million, nine hundred thirty-five thousand, six hundred eighty-one".