2257171 has 8 divisors (see below), whose sum is σ = 2600960. Its totient is φ = 1918728.

The previous prime is 2257169. The next prime is 2257187. The reversal of 2257171 is 1717522.

It is a happy number.

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

It is not a de Polignac number, because 2257171 - 2¹ = 2257169 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2257121) 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, 381 + ... + 2158.

It is an arithmetic number, because the mean of its divisors is an integer number (325120).

2^2257171 is an apocalyptic number.

2257171 is a deficient number, since it is larger than the sum of its proper divisors (343789).

2257171 is a wasteful number, since it uses less digits than its factorization.

2257171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673.

The product of its digits is 980, while the sum is 25.

The square root of 2257171 is about 1502.3884317978. The cubic root of 2257171 is about 131.1761319796.

It can be divided in two parts, 225 and 7171, that added together give a square (7396 = 86²).

The spelling of 2257171 in words is "two million, two hundred fifty-seven thousand, one hundred seventy-one".