1324656961 has 2 divisors, whose sum is σ = 1324656962. Its totient is φ = 1324656960.

The previous prime is 1324656947. The next prime is 1324656979. The reversal of 1324656961 is 1696564231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1312685361 + 11971600 = 36231^2 + 3460^2 .

It is an emirp because it is prime and its reverse (1696564231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1324656961 - 2⁹ = 1324656449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1324656901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662328480 + 662328481.

It is an arithmetic number, because the mean of its divisors is an integer number (662328481).

Almost surely, 2^1324656961 is an apocalyptic number.

It is an amenable number.

1324656961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324656961 is an equidigital number, since it uses as much as digits as its factorization.

1324656961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 43.

The square root of 1324656961 is about 36395.8371383322. The cubic root of 1324656961 is about 1098.2498231593.

It can be divided in two parts, 13246 and 56961, that added together give a palindrome (70207).

The spelling of 1324656961 in words is "one billion, three hundred twenty-four million, six hundred fifty-six thousand, nine hundred sixty-one".