126162189 has 12 divisors (see below), whose sum is σ = 182457600. Its totient is φ = 84005064.

The previous prime is 126162187. The next prime is 126162191. The reversal of 126162189 is 981261621.

126162189 is a `hidden beast` number, since 1 + 26 + 1 + 621 + 8 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (126162187) and next prime (126162191).

It is not a de Polignac number, because 126162189 - 2¹ = 126162187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126162187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429 + ... + 15890.

It is an arithmetic number, because the mean of its divisors is an integer number (15204800).

Almost surely, 2^126162189 is an apocalyptic number.

It is an amenable number.

126162189 is a deficient number, since it is larger than the sum of its proper divisors (56295411).

126162189 is a wasteful number, since it uses less digits than its factorization.

126162189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17184 (or 17181 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 126162189 is about 11232.1943092167. The cubic root of 126162189 is about 501.5448075571.

The spelling of 126162189 in words is "one hundred twenty-six million, one hundred sixty-two thousand, one hundred eighty-nine".