230458981 has 4 divisors (see below), whose sum is σ = 230561100. Its totient is φ = 230356864.

The previous prime is 230458979. The next prime is 230459041. The reversal of 230458981 is 189854032.

230458981 = 10734² + 10735².

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 115240225 + 115218756 = 10735^2 + 10734^2 .

It is a cyclic number.

It is not a de Polignac number, because 230458981 - 2¹ = 230458979 is a prime.

It is a super-2 number, since 2×230458981² = 106222683847116722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230458931) 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, 47596 + ... + 52213.

It is an arithmetic number, because the mean of its divisors is an integer number (57640275).

Almost surely, 2^230458981 is an apocalyptic number.

230458981 is the 10735-th centered square number.

It is an amenable number.

230458981 is a deficient number, since it is larger than the sum of its proper divisors (102119).

230458981 is an equidigital number, since it uses as much as digits as its factorization.

230458981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102118.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 230458981 is about 15180.8755017621. The cubic root of 230458981 is about 613.0998536005.

The spelling of 230458981 in words is "two hundred thirty million, four hundred fifty-eight thousand, nine hundred eighty-one".