1321465 has 8 divisors (see below), whose sum is σ = 1654848. Its totient is φ = 1011120.

The previous prime is 1321459. The next prime is 1321477. The reversal of 1321465 is 5641231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321465 - 2³ = 1321457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5631 + ... + 5860.

It is an arithmetic number, because the mean of its divisors is an integer number (206856).

2^1321465 is an apocalyptic number.

It is an amenable number.

1321465 is a deficient number, since it is larger than the sum of its proper divisors (333383).

1321465 is a wasteful number, since it uses less digits than its factorization.

1321465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11519.

The product of its digits is 720, while the sum is 22.

The square root of 1321465 is about 1149.5499119221. The cubic root of 1321465 is about 109.7366980729.

Adding to 1321465 its reverse (5641231), we get a palindrome (6962696).

The spelling of 1321465 in words is "one million, three hundred twenty-one thousand, four hundred sixty-five".