234202109 has 2 divisors, whose sum is σ = 234202110. Its totient is φ = 234202108.

The previous prime is 234202079. The next prime is 234202141. The reversal of 234202109 is 901202432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217474009 + 16728100 = 14747^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 234202109 - 2⁸ = 234201853 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234202159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117101054 + 117101055.

It is an arithmetic number, because the mean of its divisors is an integer number (117101055).

Almost surely, 2^234202109 is an apocalyptic number.

It is an amenable number.

234202109 is a deficient number, since it is larger than the sum of its proper divisors (1).

234202109 is an equidigital number, since it uses as much as digits as its factorization.

234202109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 234202109 is about 15303.6632542669. The cubic root of 234202109 is about 616.4013774240.

The spelling of 234202109 in words is "two hundred thirty-four million, two hundred two thousand, one hundred nine".