243146471 has 2 divisors, whose sum is σ = 243146472. Its totient is φ = 243146470.

The previous prime is 243146459. The next prime is 243146503. The reversal of 243146471 is 174641342.

It is an a-pointer prime, because the next prime (243146503) can be obtained adding 243146471 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243146471 - 2²² = 238952167 is a prime.

It is a super-3 number, since 3×243146471³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243146171) 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, 121573235 + 121573236.

It is an arithmetic number, because the mean of its divisors is an integer number (121573236).

Almost surely, 2^243146471 is an apocalyptic number.

243146471 is a deficient number, since it is larger than the sum of its proper divisors (1).

243146471 is an equidigital number, since it uses as much as digits as its factorization.

243146471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 243146471 is about 15593.1546198965. The cubic root of 243146471 is about 624.1505011392.

The spelling of 243146471 in words is "two hundred forty-three million, one hundred forty-six thousand, four hundred seventy-one".