1147841 has 2 divisors, whose sum is σ = 1147842. Its totient is φ = 1147840.

The previous prime is 1147819. The next prime is 1147843. The reversal of 1147841 is 1487411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 330625 = 904^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1147841 is a prime.

It is a super-2 number, since 2×1147841² = 2635077922562, which contains 22 as substring.

Together with 1147843, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1147841.

It is not a weakly prime, because it can be changed into another prime (1147843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573920 + 573921.

It is an arithmetic number, because the mean of its divisors is an integer number (573921).

2^1147841 is an apocalyptic number.

It is an amenable number.

1147841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147841 is an equidigital number, since it uses as much as digits as its factorization.

1147841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 26.

The square root of 1147841 is about 1071.3734176280. The cubic root of 1147841 is about 104.7033501359.

The spelling of 1147841 in words is "one million, one hundred forty-seven thousand, eight hundred forty-one".