4181117 has 4 divisors (see below), whose sum is σ = 4260060. Its totient is φ = 4102176.

The previous prime is 4181087. The next prime is 4181129. The reversal of 4181117 is 7111814.

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 1104601 + 3076516 = 1051^2 + 1754^2 .

It is a cyclic number.

It is not a de Polignac number, because 4181117 - 2¹⁰ = 4180093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4181092 and 4181101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181137) 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, 39392 + ... + 39497.

It is an arithmetic number, because the mean of its divisors is an integer number (1065015).

Almost surely, 2^4181117 is an apocalyptic number.

It is an amenable number.

4181117 is a deficient number, since it is larger than the sum of its proper divisors (78943).

4181117 is an equidigital number, since it uses as much as digits as its factorization.

4181117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78942.

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

The square root of 4181117 is about 2044.7779830583. Note that the first 3 decimals coincide. The cubic root of 4181117 is about 161.1007047139.

The spelling of 4181117 in words is "four million, one hundred eighty-one thousand, one hundred seventeen".