234212129 has 4 divisors (see below), whose sum is σ = 235704084. Its totient is φ = 232720176.

The previous prime is 234212119. The next prime is 234212171. The reversal of 234212129 is 921212432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92602129 + 141610000 = 9623^2 + 11900^2 .

It is a cyclic number.

It is not a de Polignac number, because 234212129 - 2¹² = 234208033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234212098 and 234212107.

It is not an unprimeable number, because it can be changed into a prime (234212119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745742 + ... + 746055.

It is an arithmetic number, because the mean of its divisors is an integer number (58926021).

Almost surely, 2^234212129 is an apocalyptic number.

It is an amenable number.

234212129 is a deficient number, since it is larger than the sum of its proper divisors (1491955).

234212129 is a wasteful number, since it uses less digits than its factorization.

234212129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491954.

The product of its digits is 1728, while the sum is 26.

The square root of 234212129 is about 15303.9906233636. The cubic root of 234212129 is about 616.4101679138.

The spelling of 234212129 in words is "two hundred thirty-four million, two hundred twelve thousand, one hundred twenty-nine".