1281141 has 12 divisors (see below), whose sum is σ = 1860768. Its totient is φ = 849384.

The previous prime is 1281131. The next prime is 1281149. The reversal of 1281141 is 1411821.

It is not a de Polignac number, because 1281141 - 2¹¹ = 1279093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281149) 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 11 ways as a sum of consecutive naturals, for example, 2296 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (155064).

2^1281141 is an apocalyptic number.

It is an amenable number.

1281141 is a deficient number, since it is larger than the sum of its proper divisors (579627).

1281141 is a wasteful number, since it uses less digits than its factorization.

1281141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 789 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 1281141 is about 1131.8749930977. The cubic root of 1281141 is about 108.6089570667.

Adding to 1281141 its reverse (1411821), we get a palindrome (2692962).

The spelling of 1281141 in words is "one million, two hundred eighty-one thousand, one hundred forty-one".