234423181 has 2 divisors, whose sum is σ = 234423182. Its totient is φ = 234423180.

The previous prime is 234423109. The next prime is 234423191. The reversal of 234423181 is 181324432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210511081 + 23912100 = 14509^2 + 4890^2 .

It is a cyclic number.

It is not a de Polignac number, because 234423181 - 2⁷ = 234423053 is a prime.

It is a super-2 number, since 2×234423181² = 109908455580317522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234423191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117211590 + 117211591.

It is an arithmetic number, because the mean of its divisors is an integer number (117211591).

Almost surely, 2^234423181 is an apocalyptic number.

It is an amenable number.

234423181 is a deficient number, since it is larger than the sum of its proper divisors (1).

234423181 is an equidigital number, since it uses as much as digits as its factorization.

234423181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

The square root of 234423181 is about 15310.8843964024. The cubic root of 234423181 is about 616.5952644217.

The spelling of 234423181 in words is "two hundred thirty-four million, four hundred twenty-three thousand, one hundred eighty-one".