230481389 has 2 divisors, whose sum is σ = 230481390. Its totient is φ = 230481388.

The previous prime is 230481379. The next prime is 230481397. The reversal of 230481389 is 983184032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173976100 + 56505289 = 13190^2 + 7517^2 .

It is a cyclic number.

It is not a de Polignac number, because 230481389 - 2⁸ = 230481133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230481319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115240694 + 115240695.

It is an arithmetic number, because the mean of its divisors is an integer number (115240695).

Almost surely, 2^230481389 is an apocalyptic number.

It is an amenable number.

230481389 is a deficient number, since it is larger than the sum of its proper divisors (1).

230481389 is an equidigital number, since it uses as much as digits as its factorization.

230481389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 230481389 is about 15181.6135176733. The cubic root of 230481389 is about 613.1197239424.

The spelling of 230481389 in words is "two hundred thirty million, four hundred eighty-one thousand, three hundred eighty-nine".