1006005126 has 16 divisors (see below), whose sum is σ = 2299440384. Its totient is φ = 287430024.

The previous prime is 1006005113. The next prime is 1006005127. The reversal of 1006005126 is 6215006001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006005127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11976210 + ... + 11976293.

It is an arithmetic number, because the mean of its divisors is an integer number (143715024).

Almost surely, 2^1006005126 is an apocalyptic number.

1006005126 is an abundant number, since it is smaller than the sum of its proper divisors (1293435258).

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

1006005126 is a wasteful number, since it uses less digits than its factorization.

1006005126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23952515.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1006005126 is about 31717.5838613221. The cubic root of 1006005126 is about 1001.9977151433.

The spelling of 1006005126 in words is "one billion, six million, five thousand, one hundred twenty-six".