1148680989 has 12 divisors (see below), whose sum is σ = 1660780576. Its totient is φ = 765060552.

The previous prime is 1148680963. The next prime is 1148681003. The reversal of 1148680989 is 9890868411.

1148680989 is a `hidden beast` number, since 1 + 1 + 486 + 80 + 9 + 89 = 666.

It is not a de Polignac number, because 1148680989 - 2⁷ = 1148680861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148680909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50467 + ... + 69600.

Almost surely, 2^1148680989 is an apocalyptic number.

It is an amenable number.

1148680989 is a deficient number, since it is larger than the sum of its proper divisors (512099587).

1148680989 is a wasteful number, since it uses less digits than its factorization.

1148680989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121136 (or 121133 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The square root of 1148680989 is about 33892.1965797438. The cubic root of 1148680989 is about 1047.2888451374.

The spelling of 1148680989 in words is "one billion, one hundred forty-eight million, six hundred eighty thousand, nine hundred eighty-nine".