126244100 has 18 divisors (see below), whose sum is σ = 273949914. Its totient is φ = 50497600.

The previous prime is 126244081. The next prime is 126244123. The reversal of 126244100 is 1442621.

It can be written as a sum of positive squares in 3 ways, for example, as 22733824 + 103510276 = 4768^2 + 10174^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 631121 + ... + 631320.

Almost surely, 2^126244100 is an apocalyptic number.

126244100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126244100 is an abundant number, since it is smaller than the sum of its proper divisors (147705814).

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

126244100 is a wasteful number, since it uses less digits than its factorization.

126244100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262455 (or 1262448 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 126244100 is about 11235.8399775006. The cubic root of 126244100 is about 501.6533269939.

Adding to 126244100 its reverse (1442621), we get a palindrome (127686721).

The spelling of 126244100 in words is "one hundred twenty-six million, two hundred forty-four thousand, one hundred".