1331276 has 12 divisors (see below), whose sum is σ = 2369640. Its totient is φ = 654240.

The previous prime is 1331269. The next prime is 1331279. The reversal of 1331276 is 6721331.

1331276 = T₂₃ + T₂₄ + ... + T₁₉₉.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585 + ... + 3056.

It is an arithmetic number, because the mean of its divisors is an integer number (197470).

2^1331276 is an apocalyptic number.

It is an amenable number.

1331276 is a deficient number, since it is larger than the sum of its proper divisors (1038364).

1331276 is a wasteful number, since it uses less digits than its factorization.

1331276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704 (or 5702 counting only the distinct ones).

The product of its digits is 756, while the sum is 23.

The square root of 1331276 is about 1153.8093430026. The cubic root of 1331276 is about 110.0076027803.

The spelling of 1331276 in words is "one million, three hundred thirty-one thousand, two hundred seventy-six".