1105241987 has 2 divisors, whose sum is σ = 1105241988. Its totient is φ = 1105241986.

The previous prime is 1105241957. The next prime is 1105241993. The reversal of 1105241987 is 7891425011.

It is a strong prime.

It is an emirp because it is prime and its reverse (7891425011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1105241987 - 2²⁶ = 1038133123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1105241987.

It is not a weakly prime, because it can be changed into another prime (1105241947) 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, 552620993 + 552620994.

It is an arithmetic number, because the mean of its divisors is an integer number (552620994).

Almost surely, 2^1105241987 is an apocalyptic number.

1105241987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105241987 is an equidigital number, since it uses as much as digits as its factorization.

1105241987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 1105241987 is about 33245.1799062661. The cubic root of 1105241987 is about 1033.9172748636.

Adding to 1105241987 its reverse (7891425011), we get a palindrome (8996666998).

The spelling of 1105241987 in words is "one billion, one hundred five million, two hundred forty-one thousand, nine hundred eighty-seven".