4129005 has 16 divisors (see below), whose sum is σ = 6701184. Its totient is φ = 2170560.

The previous prime is 4129003. The next prime is 4129007. The reversal of 4129005 is 5009214.

It is an interprime number because it is at equal distance from previous prime (4129003) and next prime (4129007).

It is not a de Polignac number, because 4129005 - 2¹ = 4129003 is a prime.

4129005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (418824).

Almost surely, 2^4129005 is an apocalyptic number.

It is an amenable number.

4129005 is a deficient number, since it is larger than the sum of its proper divisors (2572179).

4129005 is a wasteful number, since it uses less digits than its factorization.

4129005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 4129005 is about 2031.9953247978. The cubic root of 4129005 is about 160.4286034482.

The spelling of 4129005 in words is "four million, one hundred twenty-nine thousand, five".