234671257 has 2 divisors, whose sum is σ = 234671258. Its totient is φ = 234671256.

The previous prime is 234671251. The next prime is 234671291. The reversal of 234671257 is 752176432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198922816 + 35748441 = 14104^2 + 5979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234671257 is a prime.

It is not a weakly prime, because it can be changed into another prime (234671251) 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, 117335628 + 117335629.

It is an arithmetic number, because the mean of its divisors is an integer number (117335629).

Almost surely, 2^234671257 is an apocalyptic number.

It is an amenable number.

234671257 is a deficient number, since it is larger than the sum of its proper divisors (1).

234671257 is an equidigital number, since it uses as much as digits as its factorization.

234671257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 37.

The square root of 234671257 is about 15318.9835498312. The cubic root of 234671257 is about 616.8126896793.

The spelling of 234671257 in words is "two hundred thirty-four million, six hundred seventy-one thousand, two hundred fifty-seven".