234145649 has 2 divisors, whose sum is σ = 234145650. Its totient is φ = 234145648.

The previous prime is 234145643. The next prime is 234145663. The reversal of 234145649 is 946541432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169182049 + 64963600 = 13007^2 + 8060^2 .

It is a cyclic number.

It is not a de Polignac number, because 234145649 - 2¹² = 234141553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (234145643) 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, 117072824 + 117072825.

It is an arithmetic number, because the mean of its divisors is an integer number (117072825).

Almost surely, 2^234145649 is an apocalyptic number.

It is an amenable number.

234145649 is a deficient number, since it is larger than the sum of its proper divisors (1).

234145649 is an equidigital number, since it uses as much as digits as its factorization.

234145649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 234145649 is about 15301.8184867028. The cubic root of 234145649 is about 616.3518406957.

The spelling of 234145649 in words is "two hundred thirty-four million, one hundred forty-five thousand, six hundred forty-nine".