1165490441 has 2 divisors, whose sum is σ = 1165490442. Its totient is φ = 1165490440.

The previous prime is 1165490387. The next prime is 1165490467. The reversal of 1165490441 is 1440945611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1087680400 + 77810041 = 32980^2 + 8821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165490441 - 2⁶ = 1165490377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165490141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582745220 + 582745221.

It is an arithmetic number, because the mean of its divisors is an integer number (582745221).

Almost surely, 2^1165490441 is an apocalyptic number.

It is an amenable number.

1165490441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165490441 is an equidigital number, since it uses as much as digits as its factorization.

1165490441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1165490441 is about 34139.2800304869. The cubic root of 1165490441 is about 1052.3726966352.

The spelling of 1165490441 in words is "one billion, one hundred sixty-five million, four hundred ninety thousand, four hundred forty-one".