1321282 has 16 divisors (see below), whose sum is σ = 2075904. Its totient is φ = 630000.

The previous prime is 1321273. The next prime is 1321283. The reversal of 1321282 is 2821231.

It is a super-2 number, since 2×1321282² = 3491572247048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321283) 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 7 ways as a sum of consecutive naturals, for example, 6157 + ... + 6367.

It is an arithmetic number, because the mean of its divisors is an integer number (129744).

2^1321282 is an apocalyptic number.

1321282 is a deficient number, since it is larger than the sum of its proper divisors (754622).

1321282 is a wasteful number, since it uses less digits than its factorization.

1321282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its digits is 192, while the sum is 19.

The square root of 1321282 is about 1149.4703127963. The cubic root of 1321282 is about 109.7316322954.

The spelling of 1321282 in words is "one million, three hundred twenty-one thousand, two hundred eighty-two".