1149313568 has 54 divisors (see below), whose sum is σ = 2455481007. Its totient is φ = 529301760.

The previous prime is 1149313559. The next prime is 1149313579. The reversal of 1149313568 is 8653139411.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 50523664 + 1098789904 = 7108^2 + 33148^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23972.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2492858 + ... + 2493318.

Almost surely, 2^1149313568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149313568

1149313568 is an abundant number, since it is smaller than the sum of its proper divisors (1306167439).

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

1149313568 is an frugal number, since it uses more digits than its factorization.

1149313568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 476 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 1149313568 is about 33901.5275172078. The cubic root of 1149313568 is about 1047.4810572955.

The spelling of 1149313568 in words is "one billion, one hundred forty-nine million, three hundred thirteen thousand, five hundred sixty-eight".