1262321 has 2 divisors, whose sum is σ = 1262322. Its totient is φ = 1262320.

The previous prime is 1262311. The next prime is 1262363. The reversal of 1262321 is 1232621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 7921 = 1120^2 + 89^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1262321 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1262321.

It is not a weakly prime, because it can be changed into another prime (1262311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631160 + 631161.

It is an arithmetic number, because the mean of its divisors is an integer number (631161).

2^1262321 is an apocalyptic number.

It is an amenable number.

1262321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262321 is an equidigital number, since it uses as much as digits as its factorization.

1262321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 1262321 is about 1123.5305959341. The cubic root of 1262321 is about 108.0745084847.

Adding to 1262321 its reverse (1232621), we get a palindrome (2494942).

The spelling of 1262321 in words is "one million, two hundred sixty-two thousand, three hundred twenty-one".