1322521427 has 2 divisors, whose sum is σ = 1322521428. Its totient is φ = 1322521426.

The previous prime is 1322521397. The next prime is 1322521433. The reversal of 1322521427 is 7241252231.

It is a strong prime.

It is an emirp because it is prime and its reverse (7241252231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322521427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1322521427.

It is not a weakly prime, because it can be changed into another prime (1322521457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661260713 + 661260714.

It is an arithmetic number, because the mean of its divisors is an integer number (661260714).

Almost surely, 2^1322521427 is an apocalyptic number.

1322521427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322521427 is an equidigital number, since it uses as much as digits as its factorization.

1322521427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 1322521427 is about 36366.4876912797. The cubic root of 1322521427 is about 1097.6593278130.

Adding to 1322521427 its reverse (7241252231), we get a palindrome (8563773658).

The spelling of 1322521427 in words is "one billion, three hundred twenty-two million, five hundred twenty-one thousand, four hundred twenty-seven".