4002113 has 2 divisors, whose sum is σ = 4002114. Its totient is φ = 4002112.

The previous prime is 4002109. The next prime is 4002127. The reversal of 4002113 is 3112004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2765569 + 1236544 = 1663^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002113 - 2² = 4002109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4002094 and 4002103.

It is not a weakly prime, because it can be changed into another prime (4002143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001056 + 2001057.

It is an arithmetic number, because the mean of its divisors is an integer number (2001057).

Almost surely, 2^4002113 is an apocalyptic number.

It is an amenable number.

4002113 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002113 is an equidigital number, since it uses as much as digits as its factorization.

4002113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 4002113 is about 2000.5281802564. The cubic root of 4002113 is about 158.7680517633.

Adding to 4002113 its reverse (3112004), we get a palindrome (7114117).

The spelling of 4002113 in words is "four million, two thousand, one hundred thirteen".