1164111131 has 8 divisors (see below), whose sum is σ = 1213420560. Its totient is φ = 1115741088.

The previous prime is 1164111119. The next prime is 1164111191. The reversal of 1164111131 is 1311114611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1164111131 is a prime.

It is a super-2 number, since 2×1164111131² = 2710309450636198322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164111191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232316 + ... + 237273.

It is an arithmetic number, because the mean of its divisors is an integer number (151677570).

Almost surely, 2^1164111131 is an apocalyptic number.

1164111131 is a deficient number, since it is larger than the sum of its proper divisors (49309429).

1164111131 is an equidigital number, since it uses as much as digits as its factorization.

1164111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469693.

The product of its digits is 72, while the sum is 20.

The square root of 1164111131 is about 34119.0728332409. The cubic root of 1164111131 is about 1051.9573861571.

Adding to 1164111131 its reverse (1311114611), we get a palindrome (2475225742).

The spelling of 1164111131 in words is "one billion, one hundred sixty-four million, one hundred eleven thousand, one hundred thirty-one".