234206381 has 2 divisors, whose sum is σ = 234206382. Its totient is φ = 234206380.

The previous prime is 234206363. The next prime is 234206393. The reversal of 234206381 is 183602432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233050756 + 1155625 = 15266^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 234206381 - 2⁶ = 234206317 is a prime.

It is a super-2 number, since 2×234206381² = 109705257802234322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234206321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117103190 + 117103191.

It is an arithmetic number, because the mean of its divisors is an integer number (117103191).

Almost surely, 2^234206381 is an apocalyptic number.

It is an amenable number.

234206381 is a deficient number, since it is larger than the sum of its proper divisors (1).

234206381 is an equidigital number, since it uses as much as digits as its factorization.

234206381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 234206381 is about 15303.8028280555. The cubic root of 234206381 is about 616.4051252563.

The spelling of 234206381 in words is "two hundred thirty-four million, two hundred six thousand, three hundred eighty-one".