234845381 has 2 divisors, whose sum is σ = 234845382. Its totient is φ = 234845380.

The previous prime is 234845371. The next prime is 234845399. The reversal of 234845381 is 183548432.

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., 185368225 + 49477156 = 13615^2 + 7034^2 .

It is a cyclic number.

It is not a de Polignac number, because 234845381 - 2²² = 230651077 is a prime.

It is a super-2 number, since 2×234845381² = 110304705954070322, 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 (234845371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117422690 + 117422691.

It is an arithmetic number, because the mean of its divisors is an integer number (117422691).

Almost surely, 2^234845381 is an apocalyptic number.

It is an amenable number.

234845381 is a deficient number, since it is larger than the sum of its proper divisors (1).

234845381 is an equidigital number, since it uses as much as digits as its factorization.

234845381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 38.

The square root of 234845381 is about 15324.6657712330. The cubic root of 234845381 is about 616.9652084856.

The spelling of 234845381 in words is "two hundred thirty-four million, eight hundred forty-five thousand, three hundred eighty-one".