20010126 has 8 divisors (see below), whose sum is σ = 40020264. Its totient is φ = 6670040.

The previous prime is 20010079. The next prime is 20010127. The reversal of 20010126 is 62101002.

It is a sphenic number, since it is the product of 3 distinct primes.

20010126 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667505 + ... + 1667516.

It is an arithmetic number, because the mean of its divisors is an integer number (5002533).

Almost surely, 2^20010126 is an apocalyptic number.

20010126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20010126 is a wasteful number, since it uses less digits than its factorization.

20010126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335026.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20010126 is about 4473.2679329546. The cubic root of 20010126 is about 271.4875642517.

Adding to 20010126 its reverse (62101002), we get a palindrome (82111128).

The spelling of 20010126 in words is "twenty million, ten thousand, one hundred twenty-six".