1121455087 has 2 divisors, whose sum is σ = 1121455088. Its totient is φ = 1121455086.

The previous prime is 1121455061. The next prime is 1121455117. The reversal of 1121455087 is 7805541211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121455087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121255087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560727543 + 560727544.

It is an arithmetic number, because the mean of its divisors is an integer number (560727544).

Almost surely, 2^1121455087 is an apocalyptic number.

1121455087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121455087 is an equidigital number, since it uses as much as digits as its factorization.

1121455087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 1121455087 is about 33488.1335251757. The cubic root of 1121455087 is about 1038.9483597163.

Adding to 1121455087 its reverse (7805541211), we get a palindrome (8926996298).

The spelling of 1121455087 in words is "one billion, one hundred twenty-one million, four hundred fifty-five thousand, eighty-seven".