232130861 has 2 divisors, whose sum is σ = 232130862. Its totient is φ = 232130860.

The previous prime is 232130747. The next prime is 232130887. The reversal of 232130861 is 168031232.

232130861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (232130887) can be obtained adding 232130861 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230736100 + 1394761 = 15190^2 + 1181^2 .

It is a cyclic number.

It is not a de Polignac number, because 232130861 - 2¹⁰ = 232129837 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232130861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232138861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116065430 + 116065431.

It is an arithmetic number, because the mean of its divisors is an integer number (116065431).

Almost surely, 2^232130861 is an apocalyptic number.

It is an amenable number.

232130861 is a deficient number, since it is larger than the sum of its proper divisors (1).

232130861 is an equidigital number, since it uses as much as digits as its factorization.

232130861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 232130861 is about 15235.8413289191. The cubic root of 232130861 is about 614.5788740118.

The spelling of 232130861 in words is "two hundred thirty-two million, one hundred thirty thousand, eight hundred sixty-one".