243146653427 has 2 divisors, whose sum is σ = 243146653428. Its totient is φ = 243146653426.

The previous prime is 243146653403. The next prime is 243146653447. The reversal of 243146653427 is 724356641342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243146653427 - 2⁸ = 243146653171 is a prime.

It is not a weakly prime, because it can be changed into another prime (243146653447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121573326713 + 121573326714.

It is an arithmetic number, because the mean of its divisors is an integer number (121573326714).

Almost surely, 2^243146653427 is an apocalyptic number.

243146653427 is a deficient number, since it is larger than the sum of its proper divisors (1).

243146653427 is an equidigital number, since it uses as much as digits as its factorization.

243146653427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 47.

The spelling of 243146653427 in words is "two hundred forty-three billion, one hundred forty-six million, six hundred fifty-three thousand, four hundred twenty-seven".