234531019 has 2 divisors, whose sum is σ = 234531020. Its totient is φ = 234531018.

The previous prime is 234531007. The next prime is 234531047. The reversal of 234531019 is 910135432.

It is an a-pointer prime, because the next prime (234531047) can be obtained adding 234531019 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234531019 - 2⁹ = 234530507 is a prime.

It is a super-2 number, since 2×234531019² = 110009597746356722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (234531719) 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, 117265509 + 117265510.

It is an arithmetic number, because the mean of its divisors is an integer number (117265510).

Almost surely, 2^234531019 is an apocalyptic number.

234531019 is a deficient number, since it is larger than the sum of its proper divisors (1).

234531019 is an equidigital number, since it uses as much as digits as its factorization.

234531019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 234531019 is about 15314.4056038751. The cubic root of 234531019 is about 616.6897974604.

The spelling of 234531019 in words is "two hundred thirty-four million, five hundred thirty-one thousand, nineteen".