243465923 has 2 divisors, whose sum is σ = 243465924. Its totient is φ = 243465922.

The previous prime is 243465917. The next prime is 243465931. The reversal of 243465923 is 329564342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243465923 - 2¹⁰ = 243464899 is a prime.

It is not a weakly prime, because it can be changed into another prime (243465973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121732961 + 121732962.

It is an arithmetic number, because the mean of its divisors is an integer number (121732962).

Almost surely, 2^243465923 is an apocalyptic number.

243465923 is a deficient number, since it is larger than the sum of its proper divisors (1).

243465923 is an equidigital number, since it uses as much as digits as its factorization.

243465923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 38.

The square root of 243465923 is about 15603.3945986122. The cubic root of 243465923 is about 624.4237231045.

The spelling of 243465923 in words is "two hundred forty-three million, four hundred sixty-five thousand, nine hundred twenty-three".