231074471 has 2 divisors, whose sum is σ = 231074472. Its totient is φ = 231074470.

The previous prime is 231074429. The next prime is 231074479. The reversal of 231074471 is 174470132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231074471 is a prime.

It is a super-3 number, since 3×231074471³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231074479) 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, 115537235 + 115537236.

It is an arithmetic number, because the mean of its divisors is an integer number (115537236).

Almost surely, 2^231074471 is an apocalyptic number.

231074471 is a deficient number, since it is larger than the sum of its proper divisors (1).

231074471 is an equidigital number, since it uses as much as digits as its factorization.

231074471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 231074471 is about 15201.1338721820. The cubic root of 231074471 is about 613.6451731876.

The spelling of 231074471 in words is "two hundred thirty-one million, seventy-four thousand, four hundred seventy-one".