243225814631 has 2 divisors, whose sum is σ = 243225814632. Its totient is φ = 243225814630.

The previous prime is 243225814619. The next prime is 243225814633. The reversal of 243225814631 is 136418522342.

243225814631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243225814631 - 2¹⁴ = 243225798247 is a prime.

It is a super-2 number, since 2×243225814631² (a number of 24 digits) contains 22 as substring.

Together with 243225814633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243225814633) 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, 121612907315 + 121612907316.

It is an arithmetic number, because the mean of its divisors is an integer number (121612907316).

Almost surely, 2^243225814631 is an apocalyptic number.

243225814631 is a deficient number, since it is larger than the sum of its proper divisors (1).

243225814631 is an equidigital number, since it uses as much as digits as its factorization.

243225814631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 41.

The spelling of 243225814631 in words is "two hundred forty-three billion, two hundred twenty-five million, eight hundred fourteen thousand, six hundred thirty-one".