1164538 has 8 divisors (see below), whose sum is σ = 1794132. Its totient is φ = 566496.

The previous prime is 1164533. The next prime is 1164557. The reversal of 1164538 is 8354611.

It can be written as a sum of positive squares in 2 ways, for example, as 927369 + 237169 = 963^2 + 487^2 .

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

It is a super-2 number, since 2×1164538² = 2712297506888, which contains 22 as substring.

It is a congruent number.

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, 7795 + ... + 7942.

2^1164538 is an apocalyptic number.

1164538 is a deficient number, since it is larger than the sum of its proper divisors (629594).

1164538 is a wasteful number, since it uses less digits than its factorization.

1164538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15776.

The product of its digits is 2880, while the sum is 28.

The square root of 1164538 is about 1079.1376186567. The cubic root of 1164538 is about 105.2085951523.

The spelling of 1164538 in words is "one million, one hundred sixty-four thousand, five hundred thirty-eight".