1146390887 has 2 divisors, whose sum is σ = 1146390888. Its totient is φ = 1146390886.

The previous prime is 1146390853. The next prime is 1146390907. The reversal of 1146390887 is 7880936411.

It is a strong prime.

It is an emirp because it is prime and its reverse (7880936411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1146390887 - 2²⁸ = 877955431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146390187) 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, 573195443 + 573195444.

It is an arithmetic number, because the mean of its divisors is an integer number (573195444).

Almost surely, 2^1146390887 is an apocalyptic number.

1146390887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146390887 is an equidigital number, since it uses as much as digits as its factorization.

1146390887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 1146390887 is about 33858.3946311694. The cubic root of 1146390887 is about 1046.5923959204.

The spelling of 1146390887 in words is "one billion, one hundred forty-six million, three hundred ninety thousand, eight hundred eighty-seven".