234202391 has 2 divisors, whose sum is σ = 234202392. Its totient is φ = 234202390.

The previous prime is 234202369. The next prime is 234202403. The reversal of 234202391 is 193202432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234202391 is a prime.

It is a Chen prime.

It is equal to p_12860531 and since 234202391 and 12860531 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234202391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234202321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117101195 + 117101196.

It is an arithmetic number, because the mean of its divisors is an integer number (117101196).

Almost surely, 2^234202391 is an apocalyptic number.

234202391 is a deficient number, since it is larger than the sum of its proper divisors (1).

234202391 is an equidigital number, since it uses as much as digits as its factorization.

234202391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 234202391 is about 15303.6724677445. The cubic root of 234202391 is about 616.4016248245.

The spelling of 234202391 in words is "two hundred thirty-four million, two hundred two thousand, three hundred ninety-one".