1153891087 has 2 divisors, whose sum is σ = 1153891088. Its totient is φ = 1153891086.

The previous prime is 1153891069. The next prime is 1153891091. The reversal of 1153891087 is 7801983511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1153891087 - 2¹¹ = 1153889039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153891007) 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, 576945543 + 576945544.

It is an arithmetic number, because the mean of its divisors is an integer number (576945544).

Almost surely, 2^1153891087 is an apocalyptic number.

1153891087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153891087 is an equidigital number, since it uses as much as digits as its factorization.

1153891087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 43.

The square root of 1153891087 is about 33968.9724160152. The cubic root of 1153891087 is about 1048.8698609883.

The spelling of 1153891087 in words is "one billion, one hundred fifty-three million, eight hundred ninety-one thousand, eighty-seven".