1164531 has 4 divisors (see below), whose sum is σ = 1552712. Its totient is φ = 776352.

The previous prime is 1164521. The next prime is 1164533. The reversal of 1164531 is 1354611.

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

It is not a de Polignac number, because 1164531 - 2¹⁰ = 1163507 is a prime.

It is a super-2 number, since 2×1164531² = 2712264899922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1164498 and 1164507.

It is not an unprimeable number, because it can be changed into a prime (1164533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194086 + ... + 194091.

It is an arithmetic number, because the mean of its divisors is an integer number (388178).

2^1164531 is an apocalyptic number.

1164531 is a deficient number, since it is larger than the sum of its proper divisors (388181).

1164531 is an equidigital number, since it uses as much as digits as its factorization.

1164531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388180.

The product of its digits is 360, while the sum is 21.

The square root of 1164531 is about 1079.1343753213. The cubic root of 1164531 is about 105.2083843501.

The spelling of 1164531 in words is "one million, one hundred sixty-four thousand, five hundred thirty-one".