1145555448 has 64 divisors (see below), whose sum is σ = 3118608000. Its totient is φ = 349276032.

The previous prime is 1145555413. The next prime is 1145555449. The reversal of 1145555448 is 8445555411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145555449) 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, 30090 + ... + 56537.

It is an arithmetic number, because the mean of its divisors is an integer number (48728250).

Almost surely, 2^1145555448 is an apocalyptic number.

It is an amenable number.

1145555448 is an abundant number, since it is smaller than the sum of its proper divisors (1973052552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145555448 is a wasteful number, since it uses less digits than its factorization.

1145555448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86684 (or 86680 counting only the distinct ones).

The product of its digits is 320000, while the sum is 42.

The square root of 1145555448 is about 33846.0551320239. The cubic root of 1145555448 is about 1046.3380973794.

The spelling of 1145555448 in words is "one billion, one hundred forty-five million, five hundred fifty-five thousand, four hundred forty-eight".