1284164 has 12 divisors (see below), whose sum is σ = 2568384. Its totient is φ = 550344.

The previous prime is 1284131. The next prime is 1284169. The reversal of 1284164 is 4614821.

1284164 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1284169) 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, 22904 + ... + 22959.

It is an arithmetic number, because the mean of its divisors is an integer number (214032).

2^1284164 is an apocalyptic number.

1284164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1284164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1284164 is a wasteful number, since it uses less digits than its factorization.

1284164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45874 (or 45872 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 1284164 is about 1133.2096010889. The cubic root of 1284164 is about 108.6943150862.

Adding to 1284164 its reverse (4614821), we get a palindrome (5898985).

The spelling of 1284164 in words is "one million, two hundred eighty-four thousand, one hundred sixty-four".