230872221 has 32 divisors (see below), whose sum is σ = 356336640. Its totient is φ = 147571200.

The previous prime is 230872199. The next prime is 230872241. The reversal of 230872221 is 122278032.

It is a happy number.

It is not a de Polignac number, because 230872221 - 2⁷ = 230872093 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230872241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93361 + ... + 95801.

It is an arithmetic number, because the mean of its divisors is an integer number (11135520).

Almost surely, 2^230872221 is an apocalyptic number.

It is an amenable number.

230872221 is a deficient number, since it is larger than the sum of its proper divisors (125464419).

230872221 is a wasteful number, since it uses less digits than its factorization.

230872221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 2588 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 230872221 is about 15194.4799516140. The cubic root of 230872221 is about 613.4660881178.

It can be divided in two parts, 2308 and 72221, that added together give a square (74529 = 273²).

The spelling of 230872221 in words is "two hundred thirty million, eight hundred seventy-two thousand, two hundred twenty-one".