1164551441 has 2 divisors, whose sum is σ = 1164551442. Its totient is φ = 1164551440.

The previous prime is 1164551429. The next prime is 1164551449. The reversal of 1164551441 is 1441554611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 760380625 + 404170816 = 27575^2 + 20104^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164551441 - 2²² = 1160357137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1164551398 and 1164551407.

It is not a weakly prime, because it can be changed into another prime (1164551449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582275720 + 582275721.

It is an arithmetic number, because the mean of its divisors is an integer number (582275721).

Almost surely, 2^1164551441 is an apocalyptic number.

It is an amenable number.

1164551441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164551441 is an equidigital number, since it uses as much as digits as its factorization.

1164551441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 32.

The square root of 1164551441 is about 34125.5247725218. The cubic root of 1164551441 is about 1052.0899992037.

The spelling of 1164551441 in words is "one billion, one hundred sixty-four million, five hundred fifty-one thousand, four hundred forty-one".