230471999 has 2 divisors, whose sum is σ = 230472000. Its totient is φ = 230471998.

The previous prime is 230471977. The next prime is 230472031. The reversal of 230471999 is 999174032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230471999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230471929) 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, 115235999 + 115236000.

It is an arithmetic number, because the mean of its divisors is an integer number (115236000).

Almost surely, 2^230471999 is an apocalyptic number.

230471999 is a deficient number, since it is larger than the sum of its proper divisors (1).

230471999 is an equidigital number, since it uses as much as digits as its factorization.

230471999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 230471999 is about 15181.3042588573. The cubic root of 230471999 is about 613.1113974966. Note that the first 3 decimals are identical.

The spelling of 230471999 in words is "two hundred thirty million, four hundred seventy-one thousand, nine hundred ninety-nine".