126817280 has 176 divisors, whose sum is σ = 339572736. Its totient is φ = 45219840.

The previous prime is 126817237. The next prime is 126817291. The reversal of 126817280 is 82718621.

It is a self number, because there is not a number n which added to its sum of digits gives 126817280.

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, 2698217 + ... + 2698263.

Almost surely, 2^126817280 is an apocalyptic number.

126817280 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 126817280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169786368).

126817280 is an abundant number, since it is smaller than the sum of its proper divisors (212755456).

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

126817280 is a wasteful number, since it uses less digits than its factorization.

126817280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 126817280 is about 11261.3178624884. The cubic root of 126817280 is about 502.4113916846.

The spelling of 126817280 in words is "one hundred twenty-six million, eight hundred seventeen thousand, two hundred eighty".