1105154987 has 2 divisors, whose sum is σ = 1105154988. Its totient is φ = 1105154986.

The previous prime is 1105154977. The next prime is 1105155001. The reversal of 1105154987 is 7894515011.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7894515011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1105154987 - 2⁶ = 1105154923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1105154977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552577493 + 552577494.

It is an arithmetic number, because the mean of its divisors is an integer number (552577494).

Almost surely, 2^1105154987 is an apocalyptic number.

1105154987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105154987 is an equidigital number, since it uses as much as digits as its factorization.

1105154987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 41.

The square root of 1105154987 is about 33243.8714201580. The cubic root of 1105154987 is about 1033.8901456122.

Adding to 1105154987 its reverse (7894515011), we get a palindrome (8999669998).

The spelling of 1105154987 in words is "one billion, one hundred five million, one hundred fifty-four thousand, nine hundred eighty-seven".