1331006 has 4 divisors (see below), whose sum is σ = 1996512. Its totient is φ = 665502.

The previous prime is 1330997. The next prime is 1331023. The reversal of 1331006 is 6001331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6001331 = 7 ⋅857333.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332750 + ... + 332753.

It is an arithmetic number, because the mean of its divisors is an integer number (499128).

2^1331006 is an apocalyptic number.

1331006 is a deficient number, since it is larger than the sum of its proper divisors (665506).

1331006 is an equidigital number, since it uses as much as digits as its factorization.

1331006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665505.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1331006 is about 1153.6923333368. The cubic root of 1331006 is about 110.0001652890. Note that the first 3 decimals are identical.

Adding to 1331006 its reverse (6001331), we get a palindrome (7332337).

The spelling of 1331006 in words is "one million, three hundred thirty-one thousand, six".