231594897 has 8 divisors (see below), whose sum is σ = 315363456. Its totient is φ = 151111472.

The previous prime is 231594863. The next prime is 231594901. The reversal of 231594897 is 798495132.

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 231594897 - 2¹¹ = 231592849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231594827) 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 7 ways as a sum of consecutive naturals, for example, 821118 + ... + 821399.

It is an arithmetic number, because the mean of its divisors is an integer number (39420432).

Almost surely, 2^231594897 is an apocalyptic number.

It is an amenable number.

231594897 is a deficient number, since it is larger than the sum of its proper divisors (83768559).

231594897 is a wasteful number, since it uses less digits than its factorization.

231594897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642567.

The product of its digits is 544320, while the sum is 48.

The square root of 231594897 is about 15218.2422440964. The cubic root of 231594897 is about 614.1055117228.

The spelling of 231594897 in words is "two hundred thirty-one million, five hundred ninety-four thousand, eight hundred ninety-seven".