2171057 has 8 divisors (see below), whose sum is σ = 2495616. Its totient is φ = 1850112.

The previous prime is 2171021. The next prime is 2171077. The reversal of 2171057 is 7501712.

It is a happy number.

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 2171057 - 2¹² = 2166961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2171017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548 + ... + 2154.

It is an arithmetic number, because the mean of its divisors is an integer number (311952).

2^2171057 is an apocalyptic number.

It is an amenable number.

2171057 is a deficient number, since it is larger than the sum of its proper divisors (324559).

2171057 is a wasteful number, since it uses less digits than its factorization.

2171057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807.

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

The square root of 2171057 is about 1473.4507117647. The cubic root of 2171057 is about 129.4862763293.

Adding to 2171057 its reverse (7501712), we get a palindrome (9672769).

The spelling of 2171057 in words is "two million, one hundred seventy-one thousand, fifty-seven".