126947280 has 40 divisors (see below), whose sum is σ = 393537312. Its totient is φ = 33852544.

The previous prime is 126947237. The next prime is 126947299. The reversal of 126947280 is 82749621.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×126947280² = 32231223798796800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 264234 + ... + 264713.

Almost surely, 2^126947280 is an apocalyptic number.

126947280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126947280 is an abundant number, since it is smaller than the sum of its proper divisors (266590032).

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

126947280 is a wasteful number, since it uses less digits than its factorization.

126947280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528963 (or 528957 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 126947280 is about 11267.0883550277. The cubic root of 126947280 is about 502.5830065099.

The spelling of 126947280 in words is "one hundred twenty-six million, nine hundred forty-seven thousand, two hundred eighty".