1149539573 has 16 divisors (see below), whose sum is σ = 1415809920. Its totient is φ = 908888256.

The previous prime is 1149539557. The next prime is 1149539579. The reversal of 1149539573 is 3759359411.

It is a cyclic number.

It is not a de Polignac number, because 1149539573 - 2⁴ = 1149539557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149539579) by changing a digit.

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, 159083 + ... + 166151.

It is an arithmetic number, because the mean of its divisors is an integer number (88488120).

Almost surely, 2^1149539573 is an apocalyptic number.

1149539573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1149539573 is a deficient number, since it is larger than the sum of its proper divisors (266270347).

1149539573 is a wasteful number, since it uses less digits than its factorization.

1149539573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8876.

The product of its digits is 510300, while the sum is 47.

The square root of 1149539573 is about 33904.8606102429. The cubic root of 1149539573 is about 1047.5497128963.

The spelling of 1149539573 in words is "one billion, one hundred forty-nine million, five hundred thirty-nine thousand, five hundred seventy-three".