126072011 has 16 divisors (see below), whose sum is σ = 144076800. Its totient is φ = 109353888.

The previous prime is 126071999. The next prime is 126072031. The reversal of 126072011 is 110270621.

It is a cyclic number.

It is not a de Polignac number, because 126072011 - 2¹⁸ = 125809867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126072031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29360 + ... + 33378.

It is an arithmetic number, because the mean of its divisors is an integer number (9004800).

Almost surely, 2^126072011 is an apocalyptic number.

126072011 is a deficient number, since it is larger than the sum of its proper divisors (18004789).

126072011 is a wasteful number, since it uses less digits than its factorization.

126072011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 126072011 is about 11228.1793270325. The cubic root of 126072011 is about 501.4252812860.

The spelling of 126072011 in words is "one hundred twenty-six million, seventy-two thousand, eleven".