4015001 has 4 divisors (see below), whose sum is σ = 4020432. Its totient is φ = 4009572.

The previous prime is 4014977. The next prime is 4015013. The reversal of 4015001 is 1005104.

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 4015001 - 2⁶ = 4014937 is a prime.

It is a super-2 number, since 2×4015001² = 32240466060002, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4015031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391 + ... + 3156.

It is an arithmetic number, because the mean of its divisors is an integer number (1005108).

Almost surely, 2^4015001 is an apocalyptic number.

It is an amenable number.

4015001 is a deficient number, since it is larger than the sum of its proper divisors (5431).

4015001 is an equidigital number, since it uses as much as digits as its factorization.

4015001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 4015001 is about 2003.7467404839. The cubic root of 4015001 is about 158.9382960077.

The spelling of 4015001 in words is "four million, fifteen thousand, one".