1123164 has 36 divisors (see below), whose sum is σ = 3245424. Its totient is φ = 320832.

The previous prime is 1123151. The next prime is 1123181. The reversal of 1123164 is 4613211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1123164² = 2522994741792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1977 + ... + 2480.

2^1123164 is an apocalyptic number.

1123164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1123164 is an abundant number, since it is smaller than the sum of its proper divisors (2122260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123164 is a wasteful number, since it uses less digits than its factorization.

1123164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474 (or 4469 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1123164 is about 1059.7943196677. The cubic root of 1123164 is about 103.9475820661.

Adding to 1123164 its reverse (4613211), we get a palindrome (5736375).

The spelling of 1123164 in words is "one million, one hundred twenty-three thousand, one hundred sixty-four".