234287257 has 2 divisors, whose sum is σ = 234287258. Its totient is φ = 234287256.

The previous prime is 234287239. The next prime is 234287267. The reversal of 234287257 is 752782432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142587481 + 91699776 = 11941^2 + 9576^2 .

It is a cyclic number.

It is not a de Polignac number, because 234287257 - 2⁷ = 234287129 is a prime.

It is not a weakly prime, because it can be changed into another prime (234287267) 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, 117143628 + 117143629.

It is an arithmetic number, because the mean of its divisors is an integer number (117143629).

Almost surely, 2^234287257 is an apocalyptic number.

It is an amenable number.

234287257 is a deficient number, since it is larger than the sum of its proper divisors (1).

234287257 is an equidigital number, since it uses as much as digits as its factorization.

234287257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 40.

The square root of 234287257 is about 15306.4449497589. Note that the first 3 decimals coincide. The cubic root of 234287257 is about 616.4760693007.

The spelling of 234287257 in words is "two hundred thirty-four million, two hundred eighty-seven thousand, two hundred fifty-seven".