4155001 has 4 divisors (see below), whose sum is σ = 4159872. Its totient is φ = 4150132.

The previous prime is 4154999. The next prime is 4155007. The reversal of 4155001 is 1005514.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4155001 - 2¹ = 4154999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4155007) 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, 781 + ... + 2986.

It is an arithmetic number, because the mean of its divisors is an integer number (1039968).

Almost surely, 2^4155001 is an apocalyptic number.

It is an amenable number.

4155001 is a deficient number, since it is larger than the sum of its proper divisors (4871).

4155001 is a wasteful number, since it uses less digits than its factorization.

4155001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4870.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 4155001 is about 2038.3819563566. The cubic root of 4155001 is about 160.7645827007.

The spelling of 4155001 in words is "four million, one hundred fifty-five thousand, one".