126684140 has 24 divisors (see below), whose sum is σ = 290222352. Its totient is φ = 46066880.

The previous prime is 126684139. The next prime is 126684157. The reversal of 126684140 is 41486621.

It is a junction number, because it is equal to n+sod(n) for n = 126684097 and 126684106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287699 + ... + 288138.

It is an arithmetic number, because the mean of its divisors is an integer number (12092598).

Almost surely, 2^126684140 is an apocalyptic number.

126684140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126684140 is an abundant number, since it is smaller than the sum of its proper divisors (163538212).

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

126684140 is a wasteful number, since it uses less digits than its factorization.

126684140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575857 (or 575855 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 126684140 is about 11255.4049238577. The cubic root of 126684140 is about 502.2355100933.

The spelling of 126684140 in words is "one hundred twenty-six million, six hundred eighty-four thousand, one hundred forty".