230165021 has 8 divisors (see below), whose sum is σ = 237640704. Its totient is φ = 222778080.

The previous prime is 230165009. The next prime is 230165027. The reversal of 230165021 is 120561032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230165021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230164984 and 230165002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230165027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16895 + ... + 27308.

It is an arithmetic number, because the mean of its divisors is an integer number (29705088).

Almost surely, 2^230165021 is an apocalyptic number.

It is an amenable number.

230165021 is a deficient number, since it is larger than the sum of its proper divisors (7475683).

230165021 is a wasteful number, since it uses less digits than its factorization.

230165021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44371.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 230165021 is about 15171.1904938274. The cubic root of 230165021 is about 612.8390645793.

The spelling of 230165021 in words is "two hundred thirty million, one hundred sixty-five thousand, twenty-one".