1281295 has 8 divisors (see below), whose sum is σ = 1552320. Its totient is φ = 1015200.

The previous prime is 1281283. The next prime is 1281317. The reversal of 1281295 is 5921821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1281295 - 2⁵ = 1281263 is a prime.

1281295 is a lucky number.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 631 + ... + 1720.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

2^1281295 is an apocalyptic number.

1281295 is a deficient number, since it is larger than the sum of its proper divisors (271025).

1281295 is a wasteful number, since it uses less digits than its factorization.

1281295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465.

The product of its digits is 1440, while the sum is 28.

The square root of 1281295 is about 1131.9430197673. The cubic root of 1281295 is about 108.6133086849.

The spelling of 1281295 in words is "one million, two hundred eighty-one thousand, two hundred ninety-five".