231066747 has 12 divisors (see below), whose sum is σ = 333896160. Its totient is φ = 153983088.

The previous prime is 231066727. The next prime is 231066749. The reversal of 231066747 is 747660132.

It is not a de Polignac number, because 231066747 - 2⁸ = 231066491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231066749) 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 in 11 ways as a sum of consecutive naturals, for example, 36654 + ... + 42492.

It is an arithmetic number, because the mean of its divisors is an integer number (27824680).

Almost surely, 2^231066747 is an apocalyptic number.

231066747 is a deficient number, since it is larger than the sum of its proper divisors (102829413).

231066747 is a wasteful number, since it uses less digits than its factorization.

231066747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10242 (or 10239 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 231066747 is about 15200.8798100636. The cubic root of 231066747 is about 613.6383357842.

The spelling of 231066747 in words is "two hundred thirty-one million, sixty-six thousand, seven hundred forty-seven".