1104541661 has 2 divisors, whose sum is σ = 1104541662. Its totient is φ = 1104541660.

The previous prime is 1104541651. The next prime is 1104541667. The reversal of 1104541661 is 1661454011.

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., 592922500 + 511619161 = 24350^2 + 22619^2 .

It is a cyclic number.

It is not a de Polignac number, because 1104541661 - 2¹⁴ = 1104525277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1104541667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552270830 + 552270831.

It is an arithmetic number, because the mean of its divisors is an integer number (552270831).

Almost surely, 2^1104541661 is an apocalyptic number.

It is an amenable number.

1104541661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1104541661 is an equidigital number, since it uses as much as digits as its factorization.

1104541661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1104541661 is about 33234.6454923172. The cubic root of 1104541661 is about 1033.6988514634.

Adding to 1104541661 its reverse (1661454011), we get a palindrome (2765995672).

The spelling of 1104541661 in words is "one billion, one hundred four million, five hundred forty-one thousand, six hundred sixty-one".