2057171 has 4 divisors (see below), whose sum is σ = 2070432. Its totient is φ = 2043912.

The previous prime is 2057147. The next prime is 2057177. The reversal of 2057171 is 1717502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2057171 - 2¹⁰ = 2056147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057177) 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, 6395 + ... + 6708.

It is an arithmetic number, because the mean of its divisors is an integer number (517608).

2^2057171 is an apocalyptic number.

2057171 is a deficient number, since it is larger than the sum of its proper divisors (13261).

2057171 is a wasteful number, since it uses less digits than its factorization.

2057171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13260.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 2057171 is about 1434.2841420026. The cubic root of 2057171 is about 127.1813599191.

The spelling of 2057171 in words is "two million, fifty-seven thousand, one hundred seventy-one".