234505489 has 2 divisors, whose sum is σ = 234505490. Its totient is φ = 234505488.

The previous prime is 234505487. The next prime is 234505511. The reversal of 234505489 is 984505432.

234505489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130302225 + 104203264 = 11415^2 + 10208^2 .

It is a cyclic number.

It is not a de Polignac number, because 234505489 - 2¹ = 234505487 is a prime.

It is a super-2 number, since 2×234505489² = 109985648742258242, which contains 22 as substring.

Together with 234505487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (234505487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117252744 + 117252745.

It is an arithmetic number, because the mean of its divisors is an integer number (117252745).

Almost surely, 2^234505489 is an apocalyptic number.

It is an amenable number.

234505489 is a deficient number, since it is larger than the sum of its proper divisors (1).

234505489 is an equidigital number, since it uses as much as digits as its factorization.

234505489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 234505489 is about 15313.5720522679. The cubic root of 234505489 is about 616.6674199488.

The spelling of 234505489 in words is "two hundred thirty-four million, five hundred five thousand, four hundred eighty-nine".