234145409 has 2 divisors, whose sum is σ = 234145410. Its totient is φ = 234145408.

The previous prime is 234145397. The next prime is 234145423. The reversal of 234145409 is 904541432.

234145409 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., 161213809 + 72931600 = 12697^2 + 8540^2 .

It is a cyclic number.

It is not a de Polignac number, because 234145409 - 2²⁰ = 233096833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (234145459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117072704 + 117072705.

It is an arithmetic number, because the mean of its divisors is an integer number (117072705).

Almost surely, 2^234145409 is an apocalyptic number.

It is an amenable number.

234145409 is a deficient number, since it is larger than the sum of its proper divisors (1).

234145409 is an equidigital number, since it uses as much as digits as its factorization.

234145409 is an evil number, because the sum of its binary digits is even.

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

The square root of 234145409 is about 15301.8106444956. The cubic root of 234145409 is about 616.3516301081.

The spelling of 234145409 in words is "two hundred thirty-four million, one hundred forty-five thousand, four hundred nine".