126142180 has 24 divisors (see below), whose sum is σ = 266095872. Its totient is φ = 50228832.

The previous prime is 126142171. The next prime is 126142183. The reversal of 126142180 is 81241621.

It is not an unprimeable number, because it can be changed into a prime (126142183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9682 + ... + 18601.

It is an arithmetic number, because the mean of its divisors is an integer number (11087328).

Almost surely, 2^126142180 is an apocalyptic number.

126142180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126142180 is an abundant number, since it is smaller than the sum of its proper divisors (139953692).

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

126142180 is a wasteful number, since it uses less digits than its factorization.

126142180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28515 (or 28513 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 126142180 is about 11231.3035752757. The cubic root of 126142180 is about 501.5182915814.

The spelling of 126142180 in words is "one hundred twenty-six million, one hundred forty-two thousand, one hundred eighty".