234947281 has 2 divisors, whose sum is σ = 234947282. Its totient is φ = 234947280.

The previous prime is 234947257. The next prime is 234947287. The reversal of 234947281 is 182749432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211993600 + 22953681 = 14560^2 + 4791^2 .

It is a cyclic number.

It is not a de Polignac number, because 234947281 - 2⁵ = 234947249 is a prime.

It is a super-2 number, since 2×234947281² = 110400449698585922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (234947287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117473640 + 117473641.

It is an arithmetic number, because the mean of its divisors is an integer number (117473641).

Almost surely, 2^234947281 is an apocalyptic number.

It is an amenable number.

234947281 is a deficient number, since it is larger than the sum of its proper divisors (1).

234947281 is an equidigital number, since it uses as much as digits as its factorization.

234947281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 234947281 is about 15327.9901161242. The cubic root of 234947281 is about 617.0544298330.

The spelling of 234947281 in words is "two hundred thirty-four million, nine hundred forty-seven thousand, two hundred eighty-one".