126557200 has 180 divisors, whose sum is σ = 386506512. Its totient is φ = 39379200.

The previous prime is 126557153. The next prime is 126557203. The reversal of 126557200 is 2755621.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (126557203) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 215307 + ... + 215893.

Almost surely, 2^126557200 is an apocalyptic number.

126557200 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 126557200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193253256).

126557200 is an abundant number, since it is smaller than the sum of its proper divisors (259949312).

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

126557200 is a wasteful number, since it uses less digits than its factorization.

126557200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 126557200 is about 11249.7644419783. The cubic root of 126557200 is about 502.0677040793.

The spelling of 126557200 in words is "one hundred twenty-six million, five hundred fifty-seven thousand, two hundred".