234356009 has 2 divisors, whose sum is σ = 234356010. Its totient is φ = 234356008.

The previous prime is 234355969. The next prime is 234356093. The reversal of 234356009 is 900653432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195916009 + 38440000 = 13997^2 + 6200^2 .

It is a cyclic number.

It is not a de Polignac number, because 234356009 - 2¹² = 234351913 is a prime.

It is not a weakly prime, because it can be changed into another prime (234356099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117178004 + 117178005.

It is an arithmetic number, because the mean of its divisors is an integer number (117178005).

Almost surely, 2^234356009 is an apocalyptic number.

It is an amenable number.

234356009 is a deficient number, since it is larger than the sum of its proper divisors (1).

234356009 is an equidigital number, since it uses as much as digits as its factorization.

234356009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 234356009 is about 15308.6906363673. The cubic root of 234356009 is about 616.5363653920.

The spelling of 234356009 in words is "two hundred thirty-four million, three hundred fifty-six thousand, nine".