186412229 has 2 divisors, whose sum is σ = 186412230. Its totient is φ = 186412228.

The previous prime is 186412159. The next prime is 186412231. The reversal of 186412229 is 922214681.

186412229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104509729 + 81902500 = 10223^2 + 9050^2 .

It is a cyclic number.

It is not a de Polignac number, because 186412229 - 2¹² = 186408133 is a prime.

Together with 186412231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (186412529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93206114 + 93206115.

It is an arithmetic number, because the mean of its divisors is an integer number (93206115).

Almost surely, 2^186412229 is an apocalyptic number.

It is an amenable number.

186412229 is a deficient number, since it is larger than the sum of its proper divisors (1).

186412229 is an equidigital number, since it uses as much as digits as its factorization.

186412229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 186412229 is about 13653.2863809414. The cubic root of 186412229 is about 571.2481410911.

The spelling of 186412229 in words is "one hundred eighty-six million, four hundred twelve thousand, two hundred twenty-nine".