126713280 has 112 divisors (see below), whose sum is σ = 423550080. Its totient is φ = 32007168.

The previous prime is 126713273. The next prime is 126713309. The reversal of 126713280 is 82317621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 14767 + ... + 21713.

Almost surely, 2^126713280 is an apocalyptic number.

126713280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126713280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211775040).

126713280 is an abundant number, since it is smaller than the sum of its proper divisors (296836800).

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

126713280 is a wasteful number, since it uses less digits than its factorization.

126713280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6986 (or 6976 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 126713280 is about 11256.6993386161. The cubic root of 126713280 is about 502.2740153626.

It can be divided in two parts, 12671 and 3280, that added together give a palindrome (15951).

The spelling of 126713280 in words is "one hundred twenty-six million, seven hundred thirteen thousand, two hundred eighty".