1154535660 has 48 divisors (see below), whose sum is σ = 3591890400. Its totient is φ = 307876032.

The previous prime is 1154535653. The next prime is 1154535677. The reversal of 1154535660 is 665354511.

1154535660 is a `hidden beast` number, since 1 + 1 + 545 + 3 + 56 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068475 + ... + 1069554.

It is an arithmetic number, because the mean of its divisors is an integer number (74831050).

Almost surely, 2^1154535660 is an apocalyptic number.

1154535660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154535660 is an abundant number, since it is smaller than the sum of its proper divisors (2437354740).

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

1154535660 is a wasteful number, since it uses less digits than its factorization.

1154535660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138047 (or 2138039 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1154535660 is about 33978.4587643407. The cubic root of 1154535660 is about 1049.0651270617.

The spelling of 1154535660 in words is "one billion, one hundred fifty-four million, five hundred thirty-five thousand, six hundred sixty".