231335065 has 16 divisors (see below), whose sum is σ = 316543248. Its totient is φ = 160782336.

The previous prime is 231335057. The next prime is 231335077. The reversal of 231335065 is 560533132.

It can be written as a sum of positive squares in 8 ways, for example, as 1115136 + 230219929 = 1056^2 + 15173^2 .

It is not a de Polignac number, because 231335065 - 2³ = 231335057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103572 + ... + 105781.

It is an arithmetic number, because the mean of its divisors is an integer number (19783953).

Almost surely, 2^231335065 is an apocalyptic number.

It is an amenable number.

231335065 is a deficient number, since it is larger than the sum of its proper divisors (85208183).

231335065 is a wasteful number, since it uses less digits than its factorization.

231335065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209388.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 231335065 is about 15209.7029885531. The cubic root of 231335065 is about 613.8757657661.

Adding to 231335065 its reverse (560533132), we get a palindrome (791868197).

The spelling of 231335065 in words is "two hundred thirty-one million, three hundred thirty-five thousand, sixty-five".