231267967 has 16 divisors (see below), whose sum is σ = 284700672. Its totient is φ = 183490560.

The previous prime is 231267961. The next prime is 231267977. The reversal of 231267967 is 769762132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231267967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231267961) 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 in 15 ways as a sum of consecutive naturals, for example, 18178 + ... + 28159.

It is an arithmetic number, because the mean of its divisors is an integer number (17793792).

Almost surely, 2^231267967 is an apocalyptic number.

231267967 is a deficient number, since it is larger than the sum of its proper divisors (53432705).

231267967 is a wasteful number, since it uses less digits than its factorization.

231267967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46398.

The product of its digits is 190512, while the sum is 43.

The square root of 231267967 is about 15207.4970655924. The cubic root of 231267967 is about 613.8164091223.

The spelling of 231267967 in words is "two hundred thirty-one million, two hundred sixty-seven thousand, nine hundred sixty-seven".