126680500 has 24 divisors (see below), whose sum is σ = 276671304. Its totient is φ = 50672000.

The previous prime is 126680473. The next prime is 126680507. The reversal of 126680500 is 5086621.

It can be written as a sum of positive squares in 4 ways, for example, as 15968016 + 110712484 = 3996^2 + 10522^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126680507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126181 + ... + 127180.

It is an arithmetic number, because the mean of its divisors is an integer number (11527971).

Almost surely, 2^126680500 is an apocalyptic number.

126680500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126680500 is an abundant number, since it is smaller than the sum of its proper divisors (149990804).

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

126680500 is a wasteful number, since it uses less digits than its factorization.

126680500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253380 (or 253368 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 126680500 is about 11255.2432226052. The cubic root of 126680500 is about 502.2306998232.

The spelling of 126680500 in words is "one hundred twenty-six million, six hundred eighty thousand, five hundred".