2445171 has 8 divisors (see below), whose sum is σ = 3267984. Its totient is φ = 1626240.

The previous prime is 2445139. The next prime is 2445173. The reversal of 2445171 is 1715442.

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

It is not a de Polignac number, because 2445171 - 2⁵ = 2445139 is a prime.

It is a super-2 number, since 2×2445171² = 11957722438482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2445171 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1191 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (408498).

2^2445171 is an apocalyptic number.

2445171 is a deficient number, since it is larger than the sum of its proper divisors (822813).

2445171 is a wasteful number, since it uses less digits than its factorization.

2445171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its digits is 1120, while the sum is 24.

The square root of 2445171 is about 1563.7042559257. The cubic root of 2445171 is about 134.7213456625.

The spelling of 2445171 in words is "two million, four hundred forty-five thousand, one hundred seventy-one".