1141287 has 8 divisors (see below), whose sum is σ = 1739136. Its totient is φ = 652152.

The previous prime is 1141279. The next prime is 1141289. The reversal of 1141287 is 7821411.

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

It is not a de Polignac number, because 1141287 - 2³ = 1141279 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 27153 + ... + 27194.

It is an arithmetic number, because the mean of its divisors is an integer number (217392).

2^1141287 is an apocalyptic number.

1141287 is a deficient number, since it is larger than the sum of its proper divisors (597849).

1141287 is an equidigital number, since it uses as much as digits as its factorization.

1141287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54357.

The product of its digits is 448, while the sum is 24.

The square root of 1141287 is about 1068.3103481667. The cubic root of 1141287 is about 104.5036894983.

Adding to 1141287 its reverse (7821411), we get a palindrome (8962698).

The spelling of 1141287 in words is "one million, one hundred forty-one thousand, two hundred eighty-seven".