230652721 has 6 divisors (see below), whose sum is σ = 249760230. Its totient is φ = 212910048.

The previous prime is 230652683. The next prime is 230652727. The reversal of 230652721 is 127256032.

It can be written as a sum of positive squares in 3 ways, for example, as 2310400 + 228342321 = 1520^2 + 15111^2 .

It is not a de Polignac number, because 230652721 - 2¹⁵ = 230619953 is a prime.

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 230652721.

It is not an unprimeable number, because it can be changed into a prime (230652727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 682236 + ... + 682573.

It is an arithmetic number, because the mean of its divisors is an integer number (41626705).

Almost surely, 2^230652721 is an apocalyptic number.

It is an amenable number.

230652721 is a deficient number, since it is larger than the sum of its proper divisors (19107509).

230652721 is a wasteful number, since it uses less digits than its factorization.

230652721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364835 (or 1364822 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 230652721 is about 15187.2552161343. The cubic root of 230652721 is about 613.2716104068.

The spelling of 230652721 in words is "two hundred thirty million, six hundred fifty-two thousand, seven hundred twenty-one".