126258256 has 10 divisors (see below), whose sum is σ = 244625402. Its totient is φ = 63129120.

The previous prime is 126258239. The next prime is 126258259. The reversal of 126258256 is 652852621.

It can be written as a sum of positive squares in only one way, i.e., 114147856 + 12110400 = 10684^2 + 3480^2 .

It is a super-2 number, since 2×126258256² = 31882294416323072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126258259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3945555 + ... + 3945586.

Almost surely, 2^126258256 is an apocalyptic number.

126258256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126258256 is a deficient number, since it is larger than the sum of its proper divisors (118367146).

126258256 is an equidigital number, since it uses as much as digits as its factorization.

126258256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7891149 (or 7891143 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 126258256 is about 11236.4699082942. The cubic root of 126258256 is about 501.6720767522.

The spelling of 126258256 in words is "one hundred twenty-six million, two hundred fifty-eight thousand, two hundred fifty-six".