126321268 has 6 divisors (see below), whose sum is σ = 221062226. Its totient is φ = 63160632.

The previous prime is 126321263. The next prime is 126321281. The reversal of 126321268 is 862123621.

It can be written as a sum of positive squares in only one way, i.e., 124947684 + 1373584 = 11178^2 + 1172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126321263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15790155 + ... + 15790162.

Almost surely, 2^126321268 is an apocalyptic number.

It is an amenable number.

126321268 is a deficient number, since it is larger than the sum of its proper divisors (94740958).

126321268 is a wasteful number, since it uses less digits than its factorization.

126321268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31580321 (or 31580319 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 126321268 is about 11239.2734640634. The cubic root of 126321268 is about 501.7555197538.

Adding to 126321268 its reverse (862123621), we get a palindrome (988444889).

The spelling of 126321268 in words is "one hundred twenty-six million, three hundred twenty-one thousand, two hundred sixty-eight".