230643517 has 16 divisors (see below), whose sum is σ = 259781760. Its totient is φ = 203176512.

The previous prime is 230643433. The next prime is 230643541. The reversal of 230643517 is 715346032.

It is a cyclic number.

It is not a de Polignac number, because 230643517 - 2¹¹ = 230641469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230643817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225834 + ... + 226852.

It is an arithmetic number, because the mean of its divisors is an integer number (16236360).

Almost surely, 2^230643517 is an apocalyptic number.

It is an amenable number.

230643517 is a deficient number, since it is larger than the sum of its proper divisors (29138243).

230643517 is a wasteful number, since it uses less digits than its factorization.

230643517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 230643517 is about 15186.9521958818. The cubic root of 230643517 is about 613.2634529382.

Adding to 230643517 its reverse (715346032), we get a palindrome (945989549).

The spelling of 230643517 in words is "two hundred thirty million, six hundred forty-three thousand, five hundred seventeen".