1164505 has 4 divisors (see below), whose sum is σ = 1397412. Its totient is φ = 931600.

The previous prime is 1164503. The next prime is 1164511. The reversal of 1164505 is 5054611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5054611 = 239 ⋅21149.

It can be written as a sum of positive squares in 2 ways, for example, as 196249 + 968256 = 443^2 + 984^2 .

It is not a de Polignac number, because 1164505 - 2¹ = 1164503 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116446 + ... + 116455.

It is an arithmetic number, because the mean of its divisors is an integer number (349353).

2^1164505 is an apocalyptic number.

It is an amenable number.

1164505 is a deficient number, since it is larger than the sum of its proper divisors (232907).

1164505 is an equidigital number, since it uses as much as digits as its factorization.

1164505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232906.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1164505 is about 1079.1223285615. The cubic root of 1164505 is about 105.2076013630.

It can be divided in two parts, 11 and 64505, that added together give a square (64516 = 254²).

The spelling of 1164505 in words is "one million, one hundred sixty-four thousand, five hundred five".