234403129 has 2 divisors, whose sum is σ = 234403130. Its totient is φ = 234403128.

The previous prime is 234403087. The next prime is 234403139. The reversal of 234403129 is 921304432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165894400 + 68508729 = 12880^2 + 8277^2 .

It is a cyclic number.

It is not a de Polignac number, because 234403129 - 2¹⁷ = 234272057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234403097 and 234403106.

It is not a weakly prime, because it can be changed into another prime (234403139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117201564 + 117201565.

It is an arithmetic number, because the mean of its divisors is an integer number (117201565).

Almost surely, 2^234403129 is an apocalyptic number.

It is an amenable number.

234403129 is a deficient number, since it is larger than the sum of its proper divisors (1).

234403129 is an equidigital number, since it uses as much as digits as its factorization.

234403129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 234403129 is about 15310.2295541249. The cubic root of 234403129 is about 616.5776832242.

It can be divided in two parts, 23440 and 3129, that added together give a square (26569 = 163²).

The spelling of 234403129 in words is "two hundred thirty-four million, four hundred three thousand, one hundred twenty-nine".