2154571 has 8 divisors (see below), whose sum is σ = 2270880. Its totient is φ = 2040192.

The previous prime is 2154553. The next prime is 2154577. The reversal of 2154571 is 1754512.

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

It is not a de Polignac number, because 2154571 - 2⁵ = 2154539 is a prime.

It is a super-3 number, since 3×2154571³ = 30005694613713334233, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154577) 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, 2185 + ... + 3013.

It is an arithmetic number, because the mean of its divisors is an integer number (283860).

2^2154571 is an apocalyptic number.

2154571 is a deficient number, since it is larger than the sum of its proper divisors (116309).

2154571 is a wasteful number, since it uses less digits than its factorization.

2154571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its digits is 1400, while the sum is 25.

The square root of 2154571 is about 1467.8457003377. The cubic root of 2154571 is about 129.1576903000.

The spelling of 2154571 in words is "two million, one hundred fifty-four thousand, five hundred seventy-one".