1148642687 has 2 divisors, whose sum is σ = 1148642688. Its totient is φ = 1148642686.

The previous prime is 1148642657. The next prime is 1148642717. The reversal of 1148642687 is 7862468411.

It is a balanced prime because it is at equal distance from previous prime (1148642657) and next prime (1148642717).

It is a cyclic number.

It is not a de Polignac number, because 1148642687 - 2⁶ = 1148642623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148642657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574321343 + 574321344.

It is an arithmetic number, because the mean of its divisors is an integer number (574321344).

Almost surely, 2^1148642687 is an apocalyptic number.

1148642687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148642687 is an equidigital number, since it uses as much as digits as its factorization.

1148642687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 47.

The square root of 1148642687 is about 33891.6315187097. The cubic root of 1148642687 is about 1047.2772046257.

The spelling of 1148642687 in words is "one billion, one hundred forty-eight million, six hundred forty-two thousand, six hundred eighty-seven".