1281482 has 4 divisors (see below), whose sum is σ = 1922226. Its totient is φ = 640740.

The previous prime is 1281463. The next prime is 1281503. The reversal of 1281482 is 2841821.

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

It can be written as a sum of positive squares in only one way, i.e., 844561 + 436921 = 919^2 + 661^2 .

It is a super-3 number, since 3×1281482³ = 6313334290617336504, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320369 + ... + 320372.

2^1281482 is an apocalyptic number.

1281482 is a deficient number, since it is larger than the sum of its proper divisors (640744).

1281482 is an equidigital number, since it uses as much as digits as its factorization.

1281482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640743.

The product of its digits is 1024, while the sum is 26.

The square root of 1281482 is about 1132.0256180847. The cubic root of 1281482 is about 108.6185923239.

The spelling of 1281482 in words is "one million, two hundred eighty-one thousand, four hundred eighty-two".