4056001 has 4 divisors (see below), whose sum is σ = 4061232. Its totient is φ = 4050772.

The previous prime is 4055993. The next prime is 4056023. The reversal of 4056001 is 1006504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4056001 - 2³ = 4055993 is a prime.

It is a super-2 number, since 2×4056001² = 32902288224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4056601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195 + ... + 3088.

It is an arithmetic number, because the mean of its divisors is an integer number (1015308).

Almost surely, 2^4056001 is an apocalyptic number.

It is an amenable number.

4056001 is a deficient number, since it is larger than the sum of its proper divisors (5231).

4056001 is an equidigital number, since it uses as much as digits as its factorization.

4056001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 4056001 is about 2013.9515882960. The cubic root of 4056001 is about 159.4774750934.

The spelling of 4056001 in words is "four million, fifty-six thousand, one".