1141247 has 4 divisors (see below), whose sum is σ = 1154160. Its totient is φ = 1128336.

The previous prime is 1141243. The next prime is 1141253. The reversal of 1141247 is 7421411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7421411 = 1787 ⋅4153.

It is a cyclic number.

It is not a de Polignac number, because 1141247 - 2² = 1141243 is a prime.

It is a super-3 number, since 3×1141247³ = 4459233371009628669, which contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6323 + ... + 6500.

It is an arithmetic number, because the mean of its divisors is an integer number (288540).

2^1141247 is an apocalyptic number.

1141247 is a deficient number, since it is larger than the sum of its proper divisors (12913).

1141247 is an equidigital number, since it uses as much as digits as its factorization.

1141247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912.

The product of its digits is 224, while the sum is 20.

The square root of 1141247 is about 1068.2916268510. The cubic root of 1141247 is about 104.5024685970.

Adding to 1141247 its reverse (7421411), we get a palindrome (8562658).

The spelling of 1141247 in words is "one million, one hundred forty-one thousand, two hundred forty-seven".