1321268 has 12 divisors (see below), whose sum is σ = 2490180. Its totient is φ = 609792.

The previous prime is 1321267. The next prime is 1321273. The reversal of 1321268 is 8621231.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 1170724 = 388^2 + 1082^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12653 + ... + 12756.

It is an arithmetic number, because the mean of its divisors is an integer number (207515).

2^1321268 is an apocalyptic number.

It is an amenable number.

1321268 is a deficient number, since it is larger than the sum of its proper divisors (1168912).

1321268 is a wasteful number, since it uses less digits than its factorization.

1321268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25426 (or 25424 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1321268 is about 1149.4642230187. The cubic root of 1321268 is about 109.7312447303.

Adding to 1321268 its reverse (8621231), we get a palindrome (9942499).

The spelling of 1321268 in words is "one million, three hundred twenty-one thousand, two hundred sixty-eight".