126345280 has 28 divisors (see below), whose sum is σ = 300860460. Its totient is φ = 50537984.

The previous prime is 126345277. The next prime is 126345347. The reversal of 126345280 is 82543621.

It can be written as a sum of positive squares in 2 ways, for example, as 62473216 + 63872064 = 7904^2 + 7992^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 197095 + ... + 197734.

Almost surely, 2^126345280 is an apocalyptic number.

126345280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126345280 is an abundant number, since it is smaller than the sum of its proper divisors (174515180).

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

126345280 is an equidigital number, since it uses as much as digits as its factorization.

126345280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394846 (or 394836 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 126345280 is about 11240.3416318188. The cubic root of 126345280 is about 501.7873100992.

The spelling of 126345280 in words is "one hundred twenty-six million, three hundred forty-five thousand, two hundred eighty".