4618139 has 2 divisors, whose sum is σ = 4618140. Its totient is φ = 4618138.

The previous prime is 4618129. The next prime is 4618153. The reversal of 4618139 is 9318164.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4618139 - 2²⁰ = 3569563 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (4618129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2309069 + 2309070.

It is an arithmetic number, because the mean of its divisors is an integer number (2309070).

Almost surely, 2^4618139 is an apocalyptic number.

4618139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4618139 is an equidigital number, since it uses as much as digits as its factorization.

4618139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 4618139 is about 2148.9855746375. The cubic root of 4618139 is about 166.5286648757.

The spelling of 4618139 in words is "four million, six hundred eighteen thousand, one hundred thirty-nine".