1321276 has 12 divisors (see below), whose sum is σ = 2522520. Its totient is φ = 600560.

The previous prime is 1321273. The next prime is 1321283. The reversal of 1321276 is 6721231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321273) 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, 14971 + ... + 15058.

It is an arithmetic number, because the mean of its divisors is an integer number (210210).

2^1321276 is an apocalyptic number.

It is an amenable number.

1321276 is a deficient number, since it is larger than the sum of its proper divisors (1201244).

1321276 is a wasteful number, since it uses less digits than its factorization.

1321276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30044 (or 30042 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1321276 is about 1149.4677028956. The cubic root of 1321276 is about 109.7314661964.

The spelling of 1321276 in words is "one million, three hundred twenty-one thousand, two hundred seventy-six".