126564780 has 48 divisors (see below), whose sum is σ = 355461120. Its totient is φ = 33647808.

The previous prime is 126564761. The next prime is 126564797. The reversal of 126564780 is 87465621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17781 + ... + 23859.

It is an arithmetic number, because the mean of its divisors is an integer number (7405440).

Almost surely, 2^126564780 is an apocalyptic number.

126564780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126564780 is an abundant number, since it is smaller than the sum of its proper divisors (228896340).

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

126564780 is a wasteful number, since it uses less digits than its factorization.

126564780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438 (or 6436 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 126564780 is about 11250.1013328770. The cubic root of 126564780 is about 502.0777274712.

The spelling of 126564780 in words is "one hundred twenty-six million, five hundred sixty-four thousand, seven hundred eighty".