231163065 has 80 divisors (see below), whose sum is σ = 481041792. Its totient is φ = 104011776.

The previous prime is 231163039. The next prime is 231163067. The reversal of 231163065 is 560361132.

231163065 is a `hidden beast` number, since 23 + 1 + 1 + 630 + 6 + 5 = 666.

It is not a de Polignac number, because 231163065 - 2⁵ = 231163033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231163067) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 189337 + ... + 190553.

Almost surely, 2^231163065 is an apocalyptic number.

It is an amenable number.

231163065 is an abundant number, since it is smaller than the sum of its proper divisors (249878727).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231163065 is a wasteful number, since it uses less digits than its factorization.

231163065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 231163065 is about 15204.0476518590. The cubic root of 231163065 is about 613.7235870626.

The spelling of 231163065 in words is "two hundred thirty-one million, one hundred sixty-three thousand, sixty-five".