1326121 has 4 divisors (see below), whose sum is σ = 1330000. Its totient is φ = 1322244.

The previous prime is 1326109. The next prime is 1326133. The reversal of 1326121 is 1216231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1326109) and next prime (1326133).

It is a cyclic number.

It is not a de Polignac number, because 1326121 - 2⁵ = 1326089 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1326095 and 1326104.

It is not an unprimeable number, because it can be changed into a prime (1326151) 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, 1371 + ... + 2128.

It is an arithmetic number, because the mean of its divisors is an integer number (332500).

2^1326121 is an apocalyptic number.

It is an amenable number.

1326121 is a deficient number, since it is larger than the sum of its proper divisors (3879).

1326121 is an equidigital number, since it uses as much as digits as its factorization.

1326121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878.

The product of its digits is 72, while the sum is 16.

The square root of 1326121 is about 1151.5732716593. The cubic root of 1326121 is about 109.8654277200.

The spelling of 1326121 in words is "one million, three hundred twenty-six thousand, one hundred twenty-one".