2156106001 has 8 divisors (see below), whose sum is σ = 2486728640. Its totient is φ = 1831135248.

The previous prime is 2156105993. The next prime is 2156106013. The reversal of 2156106001 is 1006016512.

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 2156106001 - 2³ = 2156105993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2156106031) 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, 1412151 + ... + 1413676.

It is an arithmetic number, because the mean of its divisors is an integer number (310841080).

Almost surely, 2^2156106001 is an apocalyptic number.

It is an amenable number.

2156106001 is a deficient number, since it is larger than the sum of its proper divisors (330622639).

2156106001 is a wasteful number, since it uses less digits than its factorization.

2156106001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825943.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2156106001 is about 46433.8884975187. Note that the first 3 decimals coincide. The cubic root of 2156106001 is about 1291.8835535589.

The spelling of 2156106001 in words is "two billion, one hundred fifty-six million, one hundred six thousand, one".