1145548558 has 48 divisors (see below), whose sum is σ = 2210603184. Its totient is φ = 440173440.

The previous prime is 1145548541. The next prime is 1145548561. The reversal of 1145548558 is 8558455411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71416 + ... + 85972.

It is an arithmetic number, because the mean of its divisors is an integer number (46054233).

Almost surely, 2^1145548558 is an apocalyptic number.

1145548558 is a deficient number, since it is larger than the sum of its proper divisors (1065054626).

1145548558 is a wasteful number, since it uses less digits than its factorization.

1145548558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14657 (or 14650 counting only the distinct ones).

The product of its digits is 640000, while the sum is 46.

The square root of 1145548558 is about 33845.9533474831. The cubic root of 1145548558 is about 1046.3359996244.

The spelling of 1145548558 in words is "one billion, one hundred forty-five million, five hundred forty-eight thousand, five hundred fifty-eight".