126742188 has 12 divisors (see below), whose sum is σ = 295731800. Its totient is φ = 42247392.

The previous prime is 126742183. The next prime is 126742211. The reversal of 126742188 is 881247621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (126742183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5280913 + ... + 5280936.

Almost surely, 2^126742188 is an apocalyptic number.

It is an amenable number.

126742188 is an abundant number, since it is smaller than the sum of its proper divisors (168989612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126742188 is a wasteful number, since it uses less digits than its factorization.

126742188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561856 (or 10561854 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 126742188 is about 11257.9833007515. The cubic root of 126742188 is about 502.3122082371.

The spelling of 126742188 in words is "one hundred twenty-six million, seven hundred forty-two thousand, one hundred eighty-eight".