126720892 has 18 divisors (see below), whose sum is σ = 231826448. Its totient is φ = 60604632.

The previous prime is 126720889. The next prime is 126720929. The reversal of 126720892 is 298027621.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 27828 + ... + 32059.

Almost surely, 2^126720892 is an apocalyptic number.

It is an amenable number.

126720892 is a deficient number, since it is larger than the sum of its proper divisors (105105556).

126720892 is a wasteful number, since it uses less digits than its factorization.

126720892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59937 (or 59912 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 126720892 is about 11257.0374433063. The cubic root of 126720892 is about 502.2840728016.

The spelling of 126720892 in words is "one hundred twenty-six million, seven hundred twenty thousand, eight hundred ninety-two".