1164533161 has 16 divisors (see below), whose sum is σ = 1348344000. Its totient is φ = 1002925440.

The previous prime is 1164533159. The next prime is 1164533179. The reversal of 1164533161 is 1613354611.

It is not a de Polignac number, because 1164533161 - 2¹ = 1164533159 is a prime.

It is a super-2 number, since 2×1164533161² = 2712274966137303842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164533101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2265 + ... + 48313.

It is an arithmetic number, because the mean of its divisors is an integer number (84271500).

Almost surely, 2^1164533161 is an apocalyptic number.

1164533161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1164533161 is a deficient number, since it is larger than the sum of its proper divisors (183810839).

1164533161 is an equidigital number, since it uses as much as digits as its factorization.

1164533161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46101 (or 46079 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 1164533161 is about 34125.2569367617. The cubic root of 1164533161 is about 1052.0844942785.

Adding to 1164533161 its reverse (1613354611), we get a palindrome (2777887772).

The spelling of 1164533161 in words is "one billion, one hundred sixty-four million, five hundred thirty-three thousand, one hundred sixty-one".