2160257 has 4 divisors (see below), whose sum is σ = 2356656. Its totient is φ = 1963860.

The previous prime is 2160253. The next prime is 2160259. The reversal of 2160257 is 7520612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2160257 - 2² = 2160253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160253) 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, 98183 + ... + 98204.

It is an arithmetic number, because the mean of its divisors is an integer number (589164).

2^2160257 is an apocalyptic number.

It is an amenable number.

2160257 is a deficient number, since it is larger than the sum of its proper divisors (196399).

2160257 is a wasteful number, since it uses less digits than its factorization.

2160257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196398.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2160257 is about 1469.7812762449. The cubic root of 2160257 is about 129.2712079552.

Adding to 2160257 its reverse (7520612), we get a palindrome (9680869).

The spelling of 2160257 in words is "two million, one hundred sixty thousand, two hundred fifty-seven".