1320361 has 16 divisors (see below), whose sum is σ = 1612800. Its totient is φ = 1056528.

The previous prime is 1320353. The next prime is 1320377. The reversal of 1320361 is 1630231.

It is not a de Polignac number, because 1320361 - 2³ = 1320353 is a prime.

1320361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1320301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9430 + ... + 9568.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1320361 is an apocalyptic number.

It is an amenable number.

1320361 is a deficient number, since it is larger than the sum of its proper divisors (292439).

1320361 is a wasteful number, since it uses less digits than its factorization.

1320361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1320361 is about 1149.0696236521. The cubic root of 1320361 is about 109.7061302138.

Adding to 1320361 its reverse (1630231), we get a palindrome (2950592).

It can be divided in two parts, 1320 and 361, that added together give a square (1681 = 41²).

The spelling of 1320361 in words is "one million, three hundred twenty thousand, three hundred sixty-one".