230861565 has 48 divisors (see below), whose sum is σ = 443117376. Its totient is φ = 110246400.

The previous prime is 230861563. The next prime is 230861567. The reversal of 230861565 is 565168032.

230861565 is a `hidden beast` number, since 2 + 30 + 8 + 61 + 565 = 666.

It is an interprime number because it is at equal distance from previous prime (230861563) and next prime (230861567).

It is not a de Polignac number, because 230861565 - 2¹ = 230861563 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230861563) 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 47 ways as a sum of consecutive naturals, for example, 29685 + ... + 36645.

It is an arithmetic number, because the mean of its divisors is an integer number (9231612).

Almost surely, 2^230861565 is an apocalyptic number.

It is an amenable number.

230861565 is a deficient number, since it is larger than the sum of its proper divisors (212255811).

230861565 is a wasteful number, since it uses less digits than its factorization.

230861565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050 (or 7047 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 230861565 is about 15194.1292939082. The cubic root of 230861565 is about 613.4566497148.

The spelling of 230861565 in words is "two hundred thirty million, eight hundred sixty-one thousand, five hundred sixty-five".