1411991587 has 2 divisors, whose sum is σ = 1411991588. Its totient is φ = 1411991586.

The previous prime is 1411991549. The next prime is 1411991591. The reversal of 1411991587 is 7851991141.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7851991141) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1411991587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1411991887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705995793 + 705995794.

It is an arithmetic number, because the mean of its divisors is an integer number (705995794).

Almost surely, 2^1411991587 is an apocalyptic number.

1411991587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1411991587 is an equidigital number, since it uses as much as digits as its factorization.

1411991587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 46.

The square root of 1411991587 is about 37576.4765112430. The cubic root of 1411991587 is about 1121.8738791556.

The spelling of 1411991587 in words is "one billion, four hundred eleven million, nine hundred ninety-one thousand, five hundred eighty-seven".