1323127541 has 2 divisors, whose sum is σ = 1323127542. Its totient is φ = 1323127540.

The previous prime is 1323127513. The next prime is 1323127577. The reversal of 1323127541 is 1457213231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869011441 + 454116100 = 29479^2 + 21310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323127541 - 2²⁶ = 1256018677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323127241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661563770 + 661563771.

It is an arithmetic number, because the mean of its divisors is an integer number (661563771).

Almost surely, 2^1323127541 is an apocalyptic number.

It is an amenable number.

1323127541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323127541 is an equidigital number, since it uses as much as digits as its factorization.

1323127541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 1323127541 is about 36374.8201507581. The cubic root of 1323127541 is about 1097.8269886315.

The spelling of 1323127541 in words is "one billion, three hundred twenty-three million, one hundred twenty-seven thousand, five hundred forty-one".