126549500 has 192 divisors, whose sum is σ = 364815360. Its totient is φ = 37152000.

The previous prime is 126549499. The next prime is 126549517. The reversal of 126549500 is 5945621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 731414 + ... + 731586.

It is an arithmetic number, because the mean of its divisors is an integer number (1900080).

Almost surely, 2^126549500 is an apocalyptic number.

126549500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126549500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182407680).

126549500 is an abundant number, since it is smaller than the sum of its proper divisors (238265860).

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

126549500 is a wasteful number, since it uses less digits than its factorization.

126549500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 126549500 is about 11249.4222073847. The cubic root of 126549500 is about 502.0575215960.

The spelling of 126549500 in words is "one hundred twenty-six million, five hundred forty-nine thousand, five hundred".