231696481 has 4 divisors (see below), whose sum is σ = 235623600. Its totient is φ = 227769364.

The previous prime is 231696473. The next prime is 231696497. The reversal of 231696481 is 184696132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231696481 - 2³ = 231696473 is a prime.

It is a super-2 number, since 2×231696481² = 107366518615566722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231696401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963471 + ... + 1963588.

It is an arithmetic number, because the mean of its divisors is an integer number (58905900).

Almost surely, 2^231696481 is an apocalyptic number.

It is an amenable number.

231696481 is a deficient number, since it is larger than the sum of its proper divisors (3927119).

231696481 is an equidigital number, since it uses as much as digits as its factorization.

231696481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927118.

The product of its digits is 62208, while the sum is 40.

The square root of 231696481 is about 15221.5794515550. The cubic root of 231696481 is about 614.1952865499.

The spelling of 231696481 in words is "two hundred thirty-one million, six hundred ninety-six thousand, four hundred eighty-one".