1117841 has 4 divisors (see below), whose sum is σ = 1119972. Its totient is φ = 1115712.

The previous prime is 1117819. The next prime is 1117861. The reversal of 1117841 is 1487111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271441 + 846400 = 521^2 + 920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117841 - 2¹⁸ = 855697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1117811) 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, 341 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (279993).

2^1117841 is an apocalyptic number.

It is an amenable number.

1117841 is a deficient number, since it is larger than the sum of its proper divisors (2131).

1117841 is an equidigital number, since it uses as much as digits as its factorization.

1117841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130.

The product of its digits is 224, while the sum is 23.

The square root of 1117841 is about 1057.2800007567. The cubic root of 1117841 is about 103.7831093825.

It can be divided in two parts, 11 and 17841, that multiplied together give a triangular number (196251 = T₆₂₆).

The spelling of 1117841 in words is "one million, one hundred seventeen thousand, eight hundred forty-one".