2172057 has 8 divisors (see below), whose sum is σ = 2966880. Its totient is φ = 1412640.

The previous prime is 2172047. The next prime is 2172067. The reversal of 2172057 is 7502712.

It is an interprime number because it is at equal distance from previous prime (2172047) and next prime (2172067).

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

It is not a de Polignac number, because 2172057 - 2⁴ = 2172041 is a prime.

It is a super-2 number, since 2×2172057² = 9435663222498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2172007) 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, 8707 + ... + 8952.

It is an arithmetic number, because the mean of its divisors is an integer number (370860).

2^2172057 is an apocalyptic number.

It is an amenable number.

2172057 is a deficient number, since it is larger than the sum of its proper divisors (794823).

2172057 is a wasteful number, since it uses less digits than its factorization.

2172057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17703.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 2172057 is about 1473.7900121795. The cubic root of 2172057 is about 129.5061539589.

Adding to 2172057 its reverse (7502712), we get a palindrome (9674769).

The spelling of 2172057 in words is "two million, one hundred seventy-two thousand, fifty-seven".