230988133 has 4 divisors (see below), whose sum is σ = 234152428. Its totient is φ = 227823840.

The previous prime is 230988119. The next prime is 230988167. The reversal of 230988133 is 331889032.

230988133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59954049 + 171034084 = 7743^2 + 13078^2 .

It is a cyclic number.

It is not a de Polignac number, because 230988133 - 2¹⁷ = 230857061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230988092 and 230988101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230985133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582038 + ... + 1582183.

It is an arithmetic number, because the mean of its divisors is an integer number (58538107).

Almost surely, 2^230988133 is an apocalyptic number.

It is an amenable number.

230988133 is a deficient number, since it is larger than the sum of its proper divisors (3164295).

230988133 is an equidigital number, since it uses as much as digits as its factorization.

230988133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164294.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 230988133 is about 15198.2937529185. The cubic root of 230988133 is about 613.5687367951.

The spelling of 230988133 in words is "two hundred thirty million, nine hundred eighty-eight thousand, one hundred thirty-three".