126244520 has 16 divisors (see below), whose sum is σ = 284050260. Its totient is φ = 50497792.

The previous prime is 126244513. The next prime is 126244529. The reversal of 126244520 is 25442621.

It can be written as a sum of positive squares in 2 ways, for example, as 118504996 + 7739524 = 10886^2 + 2782^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126244520.

It is not an unprimeable number, because it can be changed into a prime (126244529) 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 3 ways as a sum of consecutive naturals, for example, 1578017 + ... + 1578096.

Almost surely, 2^126244520 is an apocalyptic number.

126244520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126244520 is an abundant number, since it is smaller than the sum of its proper divisors (157805740).

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

126244520 is a wasteful number, since it uses less digits than its factorization.

126244520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156124 (or 3156120 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 126244520 is about 11235.8586676764. The cubic root of 126244520 is about 501.6538833081.

The spelling of 126244520 in words is "one hundred twenty-six million, two hundred forty-four thousand, five hundred twenty".