4120005 has 8 divisors (see below), whose sum is σ = 6592032. Its totient is φ = 2197328.

The previous prime is 4120003. The next prime is 4120021. The reversal of 4120005 is 5000214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4120005 - 2¹ = 4120003 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137319 + ... + 137348.

It is an arithmetic number, because the mean of its divisors is an integer number (824004).

Almost surely, 2^4120005 is an apocalyptic number.

It is an amenable number.

4120005 is a deficient number, since it is larger than the sum of its proper divisors (2472027).

4120005 is a wasteful number, since it uses less digits than its factorization.

4120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274675.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 4120005 is about 2029.7795446797. The cubic root of 4120005 is about 160.3119564786.

Adding to 4120005 its reverse (5000214), we get a palindrome (9120219).

The spelling of 4120005 in words is "four million, one hundred twenty thousand, five".