230772281 has 2 divisors, whose sum is σ = 230772282. Its totient is φ = 230772280.

The previous prime is 230772257. The next prime is 230772299. The reversal of 230772281 is 182277032.

230772281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202777600 + 27994681 = 14240^2 + 5291^2 .

It is a cyclic number.

It is not a de Polignac number, because 230772281 - 2¹⁴ = 230755897 is a prime.

It is a super-2 number, since 2×230772281² = 106511691355885922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230772481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115386140 + 115386141.

It is an arithmetic number, because the mean of its divisors is an integer number (115386141).

Almost surely, 2^230772281 is an apocalyptic number.

It is an amenable number.

230772281 is a deficient number, since it is larger than the sum of its proper divisors (1).

230772281 is an equidigital number, since it uses as much as digits as its factorization.

230772281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 230772281 is about 15191.1909013086. The cubic root of 230772281 is about 613.3775562461.

The spelling of 230772281 in words is "two hundred thirty million, seven hundred seventy-two thousand, two hundred eighty-one".