1154133311 has 4 divisors (see below), whose sum is σ = 1164721800. Its totient is φ = 1143544824.

The previous prime is 1154133301. The next prime is 1154133319. The reversal of 1154133311 is 1133314511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154133311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154133319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5294081 + ... + 5294298.

It is an arithmetic number, because the mean of its divisors is an integer number (291180450).

Almost surely, 2^1154133311 is an apocalyptic number.

1154133311 is a deficient number, since it is larger than the sum of its proper divisors (10588489).

1154133311 is a wasteful number, since it uses less digits than its factorization.

1154133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10588488.

The product of its digits is 540, while the sum is 23.

The square root of 1154133311 is about 33972.5376002441. The cubic root of 1154133311 is about 1048.9432485262.

Adding to 1154133311 its reverse (1133314511), we get a palindrome (2287447822).

The spelling of 1154133311 in words is "one billion, one hundred fifty-four million, one hundred thirty-three thousand, three hundred eleven".