126549504 has 120 divisors (see below), whose sum is σ = 378223560. Its totient is φ = 40685568.

The previous prime is 126549499. The next prime is 126549517. The reversal of 126549504 is 405945621.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 133159 + ... + 134105.

It is an arithmetic number, because the mean of its divisors is an integer number (3151863).

Almost surely, 2^126549504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126549504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189111780).

126549504 is an abundant number, since it is smaller than the sum of its proper divisors (251674056).

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

126549504 is an equidigital number, since it uses as much as digits as its factorization.

126549504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 126549504 is about 11249.4223851716. The cubic root of 126549504 is about 502.0575268857.

The spelling of 126549504 in words is "one hundred twenty-six million, five hundred forty-nine thousand, five hundred four".