2159571 has 8 divisors (see below), whose sum is σ = 2891664. Its totient is φ = 1433600.

The previous prime is 2159557. The next prime is 2159609. The reversal of 2159571 is 1759512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 13-Lehmer number, since φ(2159571) divides (2159571-1)¹³.

It is a cyclic number.

It is not a de Polignac number, because 2159571 - 2¹⁰ = 2158547 is a prime.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2159501) 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, 630 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (361458).

2^2159571 is an apocalyptic number.

2159571 is a deficient number, since it is larger than the sum of its proper divisors (732093).

2159571 is a wasteful number, since it uses less digits than its factorization.

2159571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061.

The product of its digits is 3150, while the sum is 30.

The square root of 2159571 is about 1469.5478896586. The cubic root of 2159571 is about 129.2575229419.

The spelling of 2159571 in words is "two million, one hundred fifty-nine thousand, five hundred seventy-one".