1164556 has 12 divisors (see below), whose sum is σ = 2057440. Its totient is φ = 576720.

The previous prime is 1164533. The next prime is 1164557. The reversal of 1164556 is 6554611.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1164557) 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, 900 + ... + 1771.

2^1164556 is an apocalyptic number.

It is an amenable number.

1164556 is a deficient number, since it is larger than the sum of its proper divisors (892884).

1164556 is a wasteful number, since it uses less digits than its factorization.

1164556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784 (or 2782 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 1164556 is about 1079.1459586173. The cubic root of 1164556 is about 105.2091372113.

Adding to 1164556 its product of digits (3600), we get a triangular number (1168156 = T₁₅₂₈).

The spelling of 1164556 in words is "one million, one hundred sixty-four thousand, five hundred fifty-six".