1321160 has 16 divisors (see below), whose sum is σ = 2972700. Its totient is φ = 528448.

The previous prime is 1321157. The next prime is 1321163. The reversal of 1321160 is 611231.

It is an interprime number because it is at equal distance from previous prime (1321157) and next prime (1321163).

It can be written as a sum of positive squares in 2 ways, for example, as 1069156 + 252004 = 1034^2 + 502^2 .

It is not an unprimeable number, because it can be changed into a prime (1321163) 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 in 3 ways as a sum of consecutive naturals, for example, 16475 + ... + 16554.

2^1321160 is an apocalyptic number.

1321160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321160 is an abundant number, since it is smaller than the sum of its proper divisors (1651540).

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

1321160 is a wasteful number, since it uses less digits than its factorization.

1321160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33040 (or 33036 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1321160 is about 1149.4172436500. The cubic root of 1321160 is about 109.7282548506.

Adding to 1321160 its reverse (611231), we get a palindrome (1932391).

The spelling of 1321160 in words is "one million, three hundred twenty-one thousand, one hundred sixty".