1148335989 has 8 divisors (see below), whose sum is σ = 1535503200. Its totient is φ = 763363056.

The previous prime is 1148335949. The next prime is 1148335999. The reversal of 1148335989 is 9895338411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1148335989 - 2⁷ = 1148335861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148335949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547347 + ... + 549440.

It is an arithmetic number, because the mean of its divisors is an integer number (191937900).

Almost surely, 2^1148335989 is an apocalyptic number.

It is an amenable number.

1148335989 is a deficient number, since it is larger than the sum of its proper divisors (387167211).

1148335989 is a wasteful number, since it uses less digits than its factorization.

1148335989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097139.

The product of its digits is 933120, while the sum is 51.

The square root of 1148335989 is about 33887.1065303605. The cubic root of 1148335989 is about 1047.1839854957.

The spelling of 1148335989 in words is "one billion, one hundred forty-eight million, three hundred thirty-five thousand, nine hundred eighty-nine".