1145505587 has 2 divisors, whose sum is σ = 1145505588. Its totient is φ = 1145505586.

The previous prime is 1145505503. The next prime is 1145505619. The reversal of 1145505587 is 7855055411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145505587 - 2⁸ = 1145505331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145505187) 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, 572752793 + 572752794.

It is an arithmetic number, because the mean of its divisors is an integer number (572752794).

Almost surely, 2^1145505587 is an apocalyptic number.

1145505587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145505587 is an equidigital number, since it uses as much as digits as its factorization.

1145505587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140000, while the sum is 41.

The square root of 1145505587 is about 33845.3185389058. The cubic root of 1145505587 is about 1046.3229163244.

The spelling of 1145505587 in words is "one billion, one hundred forty-five million, five hundred five thousand, five hundred eighty-seven".