126103520 has 48 divisors (see below), whose sum is σ = 304864560. Its totient is φ = 49265664.

The previous prime is 126103519. The next prime is 126103547. The reversal of 126103520 is 25301621.

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

It is a junction number, because it is equal to n+sod(n) for n = 126103492 and 126103501.

It is a congruent number.

It is an unprimeable number.

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, 2285 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (6351345).

Almost surely, 2^126103520 is an apocalyptic number.

126103520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126103520 is an abundant number, since it is smaller than the sum of its proper divisors (178761040).

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

126103520 is a wasteful number, since it uses less digits than its factorization.

126103520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18387 (or 18379 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 126103520 is about 11229.5823608895. The cubic root of 126103520 is about 501.4670513110.

The spelling of 126103520 in words is "one hundred twenty-six million, one hundred three thousand, five hundred twenty".