126321282 has 20 divisors (see below), whose sum is σ = 283053606. Its totient is φ = 42107040.

The previous prime is 126321281. The next prime is 126321337. The reversal of 126321282 is 282123621.

126321282 is a `hidden beast` number, since 1 + 2 + 632 + 1 + 28 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71723961 + 54597321 = 8469^2 + 7389^2 .

It is a super-2 number, since 2×126321282² = 31914132572247048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (126321281) 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 in 9 ways as a sum of consecutive naturals, for example, 389719 + ... + 390042.

Almost surely, 2^126321282 is an apocalyptic number.

126321282 is an abundant number, since it is smaller than the sum of its proper divisors (156732324).

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

126321282 is an equidigital number, since it uses as much as digits as its factorization.

126321282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779775 (or 779766 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 126321282 is about 11239.2740868795. The cubic root of 126321282 is about 501.7555382901.

The spelling of 126321282 in words is "one hundred twenty-six million, three hundred twenty-one thousand, two hundred eighty-two".