230501389 has 2 divisors, whose sum is σ = 230501390. Its totient is φ = 230501388.

The previous prime is 230501387. The next prime is 230501431. The reversal of 230501389 is 983105032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204061225 + 26440164 = 14285^2 + 5142^2 .

It is a cyclic number.

It is not a de Polignac number, because 230501389 - 2¹ = 230501387 is a prime.

Together with 230501387, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 230501389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230501387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115250694 + 115250695.

It is an arithmetic number, because the mean of its divisors is an integer number (115250695).

Almost surely, 2^230501389 is an apocalyptic number.

It is an amenable number.

230501389 is a deficient number, since it is larger than the sum of its proper divisors (1).

230501389 is an equidigital number, since it uses as much as digits as its factorization.

230501389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 230501389 is about 15182.2721948989. The cubic root of 230501389 is about 613.1374578975.

The spelling of 230501389 in words is "two hundred thirty million, five hundred one thousand, three hundred eighty-nine".