1204164 has 72 divisors (see below), whose sum is σ = 3424512. Its totient is φ = 354240.

The previous prime is 1204153. The next prime is 1204169. The reversal of 1204164 is 4614021.

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

It is not an unprimeable number, because it can be changed into a prime (1204169) 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 23 ways as a sum of consecutive naturals, for example, 14467 + ... + 14549.

2^1204164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712256).

1204164 is an abundant number, since it is smaller than the sum of its proper divisors (2220348).

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

1204164 is a wasteful number, since it uses less digits than its factorization.

1204164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1204164 is about 1097.3440663712. The cubic root of 1204164 is about 106.3886291955.

Adding to 1204164 its reverse (4614021), we get a palindrome (5818185).

The spelling of 1204164 in words is "one million, two hundred four thousand, one hundred sixty-four".