126000020 has 24 divisors (see below), whose sum is σ = 278527200. Its totient is φ = 47747232.

The previous prime is 126000013. The next prime is 126000029. The reversal of 126000020 is 20000621.

It is a junction number, because it is equal to n+sod(n) for n = 125999965 and 126000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165410 + ... + 166169.

It is an arithmetic number, because the mean of its divisors is an integer number (11605300).

Almost surely, 2^126000020 is an apocalyptic number.

126000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126000020 is an abundant number, since it is smaller than the sum of its proper divisors (152527180).

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

126000020 is a wasteful number, since it uses less digits than its factorization.

126000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331607 (or 331605 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 126000020 is about 11224.9730511926. The cubic root of 126000020 is about 501.3298200218.

Adding to 126000020 its reverse (20000621), we get a palindrome (146000641).

The spelling of 126000020 in words is "one hundred twenty-six million, twenty", and thus it is an aban number.