2251671 has 8 divisors (see below), whose sum is σ = 3160320. Its totient is φ = 1422072.

The previous prime is 2251649. The next prime is 2251673. The reversal of 2251671 is 1761522.

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

It is not a de Polignac number, because 2251671 - 2¹⁴ = 2235287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251673) 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, 19695 + ... + 19808.

It is an arithmetic number, because the mean of its divisors is an integer number (395040).

2^2251671 is an apocalyptic number.

2251671 is a deficient number, since it is larger than the sum of its proper divisors (908649).

2251671 is a wasteful number, since it uses less digits than its factorization.

2251671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39525.

The product of its digits is 840, while the sum is 24.

The square root of 2251671 is about 1500.5568966221. The cubic root of 2251671 is about 131.0695006379.

The spelling of 2251671 in words is "two million, two hundred fifty-one thousand, six hundred seventy-one".