1281486 has 16 divisors (see below), whose sum is σ = 2623104. Its totient is φ = 417144.

The previous prime is 1281463. The next prime is 1281503. The reversal of 1281486 is 6841821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2226 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (163944).

2^1281486 is an apocalyptic number.

1281486 is an abundant number, since it is smaller than the sum of its proper divisors (1341618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1281486 is a wasteful number, since it uses less digits than its factorization.

1281486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015.

The product of its digits is 3072, while the sum is 30.

The square root of 1281486 is about 1132.0273848278. The cubic root of 1281486 is about 108.6187053373.

The spelling of 1281486 in words is "one million, two hundred eighty-one thousand, four hundred eighty-six".