126810256 has 40 divisors (see below), whose sum is σ = 260573600. Its totient is φ = 59616000.

The previous prime is 126810239. The next prime is 126810263. The reversal of 126810256 is 652018621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40756 + ... + 43756.

It is an arithmetic number, because the mean of its divisors is an integer number (6514340).

Almost surely, 2^126810256 is an apocalyptic number.

126810256 is a gapful number since it is divisible by the number (16) 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 126810256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130286800).

126810256 is an abundant number, since it is smaller than the sum of its proper divisors (133763344).

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

126810256 is a wasteful number, since it uses less digits than its factorization.

126810256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167 (or 3161 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 126810256 is about 11261.0059941375. The cubic root of 126810256 is about 502.4021158646.

Adding to 126810256 its reverse (652018621), we get a palindrome (778828877).

The spelling of 126810256 in words is "one hundred twenty-six million, eight hundred ten thousand, two hundred fifty-six".