126846729 has 28 divisors (see below), whose sum is σ = 191388672. Its totient is φ = 84029400.

The previous prime is 126846703. The next prime is 126846781. The reversal of 126846729 is 927648621.

It is a happy number.

It is not a de Polignac number, because 126846729 - 2⁹ = 126846217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126846799) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 138784 + ... + 139694.

Almost surely, 2^126846729 is an apocalyptic number.

It is an amenable number.

126846729 is a deficient number, since it is larger than the sum of its proper divisors (64541943).

126846729 is an frugal number, since it uses more digits than its factorization.

126846729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1105 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 126846729 is about 11262.6253156180. The cubic root of 126846729 is about 502.4502779940.

The spelling of 126846729 in words is "one hundred twenty-six million, eight hundred forty-six thousand, seven hundred twenty-nine".