1141281 has 12 divisors (see below), whose sum is σ = 1660308. Its totient is φ = 755424.

The previous prime is 1141279. The next prime is 1141289. The reversal of 1141281 is 1821411.

It can be written as a sum of positive squares in 2 ways, for example, as 1083681 + 57600 = 1041^2 + 240^2 .

It is not a de Polignac number, because 1141281 - 2¹ = 1141279 is a prime.

It is a super-2 number, since 2×1141281² = 2605044641922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1191 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (138359).

2^1141281 is an apocalyptic number.

It is an amenable number.

1141281 is a deficient number, since it is larger than the sum of its proper divisors (519027).

1141281 is a wasteful number, since it uses less digits than its factorization.

1141281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 909 counting only the distinct ones).

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

The square root of 1141281 is about 1068.3075399902. The cubic root of 1141281 is about 104.5035063650.

Adding to 1141281 its reverse (1821411), we get a palindrome (2962692).

The spelling of 1141281 in words is "one million, one hundred forty-one thousand, two hundred eighty-one".