231509068 has 24 divisors (see below), whose sum is σ = 463476384. Its totient is φ = 99120000.

The previous prime is 231509017. The next prime is 231509101. The reversal of 231509068 is 860905132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29568 + ... + 36568.

It is an arithmetic number, because the mean of its divisors is an integer number (19311516).

Almost surely, 2^231509068 is an apocalyptic number.

231509068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231509068 is an abundant number, since it is smaller than the sum of its proper divisors (231967316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231509068 is a wasteful number, since it uses less digits than its factorization.

231509068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193 (or 8191 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 231509068 is about 15215.4220447545. The cubic root of 231509068 is about 614.0296399093.

The spelling of 231509068 in words is "two hundred thirty-one million, five hundred nine thousand, sixty-eight".