230211161 has 16 divisors (see below), whose sum is σ = 247420800. Its totient is φ = 213435648.

The previous prime is 230211139. The next prime is 230211173. The reversal of 230211161 is 161112032.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230211161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230211131) 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 15 ways as a sum of consecutive naturals, for example, 524180 + ... + 524618.

It is an arithmetic number, because the mean of its divisors is an integer number (15463800).

Almost surely, 2^230211161 is an apocalyptic number.

It is an amenable number.

230211161 is a deficient number, since it is larger than the sum of its proper divisors (17209639).

230211161 is a wasteful number, since it uses less digits than its factorization.

230211161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 230211161 is about 15172.7110629577. The cubic root of 230211161 is about 612.8800127434.

Adding to 230211161 its reverse (161112032), we get a palindrome (391323193).

The spelling of 230211161 in words is "two hundred thirty million, two hundred eleven thousand, one hundred sixty-one".