1148601489 has 16 divisors (see below), whose sum is σ = 1750998912. Its totient is φ = 656062848.

The previous prime is 1148601469. The next prime is 1148601497. The reversal of 1148601489 is 9841068411.

It is a happy number.

It is not a de Polignac number, because 1148601489 - 2⁵ = 1148601457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1148601489.

It is not an unprimeable number, because it can be changed into a prime (1148601449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44907 + ... + 65679.

It is an arithmetic number, because the mean of its divisors is an integer number (109437432).

Almost surely, 2^1148601489 is an apocalyptic number.

It is an amenable number.

1148601489 is a deficient number, since it is larger than the sum of its proper divisors (602397423).

1148601489 is a wasteful number, since it uses less digits than its factorization.

1148601489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23416.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 1148601489 is about 33891.0237231040. The cubic root of 1148601489 is about 1047.2646836905.

The spelling of 1148601489 in words is "one billion, one hundred forty-eight million, six hundred one thousand, four hundred eighty-nine".