231340669 has 8 divisors (see below), whose sum is σ = 264482240. Its totient is φ = 198222336.

The previous prime is 231340667. The next prime is 231340679. The reversal of 231340669 is 966043132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231340669 - 2¹ = 231340667 is a prime.

It is a super-2 number, since 2×231340669² = 107037010266735122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231340661) 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 7 ways as a sum of consecutive naturals, for example, 31642 + ... + 38260.

It is an arithmetic number, because the mean of its divisors is an integer number (33060280).

Almost surely, 2^231340669 is an apocalyptic number.

It is an amenable number.

231340669 is a deficient number, since it is larger than the sum of its proper divisors (33141571).

231340669 is an equidigital number, since it uses as much as digits as its factorization.

231340669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11619.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 231340669 is about 15209.8872119421. The cubic root of 231340669 is about 613.8807226915.

The spelling of 231340669 in words is "two hundred thirty-one million, three hundred forty thousand, six hundred sixty-nine".