230459381 has 4 divisors (see below), whose sum is σ = 230569164. Its totient is φ = 230349600.

The previous prime is 230459357. The next prime is 230459387. The reversal of 230459381 is 183954032.

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 144600625 + 85858756 = 12025^2 + 9266^2 .

It is a cyclic number.

It is not a de Polignac number, because 230459381 - 2¹⁸ = 230197237 is a prime.

It is a super-2 number, since 2×230459381² = 106223052581806322, 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 (230459387) 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, 51680 + ... + 55961.

It is an arithmetic number, because the mean of its divisors is an integer number (57642291).

Almost surely, 2^230459381 is an apocalyptic number.

It is an amenable number.

230459381 is a deficient number, since it is larger than the sum of its proper divisors (109783).

230459381 is a wasteful number, since it uses less digits than its factorization.

230459381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109782.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 230459381 is about 15180.8886762271. Note that the first 3 decimals coincide. The cubic root of 230459381 is about 613.1002083126.

The spelling of 230459381 in words is "two hundred thirty million, four hundred fifty-nine thousand, three hundred eighty-one".