1281195 has 24 divisors (see below), whose sum is σ = 2257632. Its totient is φ = 672000.

The previous prime is 1281193. The next prime is 1281211. The reversal of 1281195 is 5911821.

It is not a de Polignac number, because 1281195 - 2¹ = 1281193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1281193) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2995 + ... + 3395.

It is an arithmetic number, because the mean of its divisors is an integer number (94068).

2^1281195 is an apocalyptic number.

1281195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1281195 is a deficient number, since it is larger than the sum of its proper divisors (976437).

1281195 is a wasteful number, since it uses less digits than its factorization.

1281195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 480 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 1281195 is about 1131.8988470707. The cubic root of 1281195 is about 108.6104829985.

The spelling of 1281195 in words is "one million, two hundred eighty-one thousand, one hundred ninety-five".