234542129 has 2 divisors, whose sum is σ = 234542130. Its totient is φ = 234542128.

The previous prime is 234542101. The next prime is 234542131. The reversal of 234542129 is 921245432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176172529 + 58369600 = 13273^2 + 7640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234542129 is a prime.

Together with 234542131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 234542095 and 234542104.

It is not a weakly prime, because it can be changed into another prime (234542159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117271064 + 117271065.

It is an arithmetic number, because the mean of its divisors is an integer number (117271065).

Almost surely, 2^234542129 is an apocalyptic number.

It is an amenable number.

234542129 is a deficient number, since it is larger than the sum of its proper divisors (1).

234542129 is an equidigital number, since it uses as much as digits as its factorization.

234542129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 234542129 is about 15314.7683299487. The cubic root of 234542129 is about 616.6995350714.

The spelling of 234542129 in words is "two hundred thirty-four million, five hundred forty-two thousand, one hundred twenty-nine".