126272189 has 8 divisors (see below), whose sum is σ = 127986432. Its totient is φ = 124568640.

The previous prime is 126272183. The next prime is 126272239. The reversal of 126272189 is 981272621.

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

It is a cyclic number.

It is not a de Polignac number, because 126272189 - 2⁸ = 126271933 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 (126272183) 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, 22694 + ... + 27704.

It is an arithmetic number, because the mean of its divisors is an integer number (15998304).

Almost surely, 2^126272189 is an apocalyptic number.

It is an amenable number.

126272189 is a deficient number, since it is larger than the sum of its proper divisors (1714243).

126272189 is a wasteful number, since it uses less digits than its factorization.

126272189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347.

The product of its digits is 24192, while the sum is 38.

The square root of 126272189 is about 11237.0898812815. The cubic root of 126272189 is about 501.6905297764.

The spelling of 126272189 in words is "one hundred twenty-six million, two hundred seventy-two thousand, one hundred eighty-nine".