1152911313 has 28 divisors (see below), whose sum is σ = 1768823760. Its totient is φ = 750712536.

The previous prime is 1152911311. The next prime is 1152911329. The reversal of 1152911313 is 3131192511.

It is a happy number.

1152911313 is a `hidden beast` number, since 1 + 1 + 529 + 1 + 131 + 3 = 666.

It is not a de Polignac number, because 1152911313 - 2¹ = 1152911311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1152911311) 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 27 ways as a sum of consecutive naturals, for example, 12958 + ... + 49736.

Almost surely, 2^1152911313 is an apocalyptic number.

It is an amenable number.

1152911313 is a deficient number, since it is larger than the sum of its proper divisors (615912447).

1152911313 is an frugal number, since it uses more digits than its factorization.

1152911313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36840 (or 36825 counting only the distinct ones).

The product of its digits is 810, while the sum is 27.

The square root of 1152911313 is about 33954.5477513690. The cubic root of 1152911313 is about 1048.5729102534.

The spelling of 1152911313 in words is "one billion, one hundred fifty-two million, nine hundred eleven thousand, three hundred thirteen".