231838065 has 32 divisors (see below), whose sum is σ = 416183040. Its totient is φ = 122439168.

The previous prime is 231838043. The next prime is 231838097. The reversal of 231838065 is 560838132.

231838065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231838065 - 2¹² = 231833969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5569 + ... + 22241.

It is an arithmetic number, because the mean of its divisors is an integer number (13005720).

Almost surely, 2^231838065 is an apocalyptic number.

It is an amenable number.

231838065 is a deficient number, since it is larger than the sum of its proper divisors (184344975).

231838065 is a wasteful number, since it uses less digits than its factorization.

231838065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16790 (or 16784 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 231838065 is about 15226.2295070053. The cubic root of 231838065 is about 614.3203676013.

The spelling of 231838065 in words is "two hundred thirty-one million, eight hundred thirty-eight thousand, sixty-five".