230992181 has 8 divisors (see below), whose sum is σ = 267709824. Its totient is φ = 195204240.

The previous prime is 230992133. The next prime is 230992189. The reversal of 230992181 is 181299032.

230992181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 230992181 - 2¹⁸ = 230730037 is a prime.

It is a super-2 number, since 2×230992181² = 106714775366273522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230992189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231890 + ... + 232883.

It is an arithmetic number, because the mean of its divisors is an integer number (33463728).

Almost surely, 2^230992181 is an apocalyptic number.

It is an amenable number.

230992181 is a deficient number, since it is larger than the sum of its proper divisors (36717643).

230992181 is an equidigital number, since it uses as much as digits as its factorization.

230992181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464851.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 230992181 is about 15198.4269251788. The cubic root of 230992181 is about 613.5723209788.

The spelling of 230992181 in words is "two hundred thirty million, nine hundred ninety-two thousand, one hundred eighty-one".