126214189 has 4 divisors (see below), whose sum is σ = 126236860. Its totient is φ = 126191520.

The previous prime is 126214183. The next prime is 126214211. The reversal of 126214189 is 981412621.

It is a happy number.

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 90573289 + 35640900 = 9517^2 + 5970^2 .

It is a cyclic number.

It is not a de Polignac number, because 126214189 - 2¹⁷ = 126083117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126214183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (31559215).

Almost surely, 2^126214189 is an apocalyptic number.

It is an amenable number.

126214189 is a deficient number, since it is larger than the sum of its proper divisors (22671).

126214189 is an equidigital number, since it uses as much as digits as its factorization.

126214189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22670.

The product of its digits is 6912, while the sum is 34.

The square root of 126214189 is about 11234.5088455170. The cubic root of 126214189 is about 501.6137049763.

It can be divided in two parts, 1262 and 14189, that added together give a palindrome (15451).

The spelling of 126214189 in words is "one hundred twenty-six million, two hundred fourteen thousand, one hundred eighty-nine".