126199500 has 288 divisors, whose sum is σ = 457119936. Its totient is φ = 26880000.

The previous prime is 126199487. The next prime is 126199523. The reversal of 126199500 is 5991621.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1249450 + ... + 1249550.

It is an arithmetic number, because the mean of its divisors is an integer number (1587222).

Almost surely, 2^126199500 is an apocalyptic number.

126199500 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 126199500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228559968).

126199500 is an abundant number, since it is smaller than the sum of its proper divisors (330920436).

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

126199500 is a wasteful number, since it uses less digits than its factorization.

126199500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 126199500 is about 11233.8550818497. The cubic root of 126199500 is about 501.5942446984.

The spelling of 126199500 in words is "one hundred twenty-six million, one hundred ninety-nine thousand, five hundred".