1326961 has 4 divisors (see below), whose sum is σ = 1352052. Its totient is φ = 1301872.

The previous prime is 1326947. The next prime is 1326967. The reversal of 1326961 is 1696231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 810000 + 516961 = 900^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326961 - 2⁵ = 1326929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1326967) 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, 12466 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (338013).

2^1326961 is an apocalyptic number.

It is an amenable number.

1326961 is a deficient number, since it is larger than the sum of its proper divisors (25091).

1326961 is an equidigital number, since it uses as much as digits as its factorization.

1326961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25090.

The product of its digits is 1944, while the sum is 28.

The square root of 1326961 is about 1151.9379323557. The cubic root of 1326961 is about 109.8886200432. Note that the first 3 decimals are identical.

The spelling of 1326961 in words is "one million, three hundred twenty-six thousand, nine hundred sixty-one".