1321064 has 8 divisors (see below), whose sum is σ = 2477010. Its totient is φ = 660528.

The previous prime is 1321063. The next prime is 1321079. The reversal of 1321064 is 4601231.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 16900 = 1142^2 + 130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1321063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82559 + ... + 82574.

2^1321064 is an apocalyptic number.

It is an amenable number.

1321064 is a deficient number, since it is larger than the sum of its proper divisors (1155946).

1321064 is a wasteful number, since it uses less digits than its factorization.

1321064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165139 (or 165135 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1321064 is about 1149.3754825991. The cubic root of 1321064 is about 109.7255970429.

Adding to 1321064 its reverse (4601231), we get a palindrome (5922295).

The spelling of 1321064 in words is "one million, three hundred twenty-one thousand, sixty-four".