1162005 has 32 divisors (see below), whose sum is σ = 2056320. Its totient is φ = 556800.

The previous prime is 1161997. The next prime is 1162009. The reversal of 1162005 is 5002611.

It is not a de Polignac number, because 1162005 - 2³ = 1161997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

1162005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162009) 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 31 ways as a sum of consecutive naturals, for example, 11455 + ... + 11555.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2^1162005 is an apocalyptic number.

1162005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1162005 is a deficient number, since it is larger than the sum of its proper divisors (894315).

1162005 is a wasteful number, since it uses less digits than its factorization.

1162005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1162005 is about 1077.9633574477. The cubic root of 1162005 is about 105.1322596376.

Adding to 1162005 its reverse (5002611), we get a palindrome (6164616).

Subtracting 1162005 from its reverse (5002611), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1162005 in words is "one million, one hundred sixty-two thousand, five".