2174149 has 4 divisors (see below), whose sum is σ = 2178540. Its totient is φ = 2169760.

The previous prime is 2174141. The next prime is 2174171. The reversal of 2174149 is 9414712.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1188100 + 986049 = 1090^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 2174149 - 2³ = 2174141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2174141) 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, 1342 + ... + 2479.

It is an arithmetic number, because the mean of its divisors is an integer number (544635).

2^2174149 is an apocalyptic number.

It is an amenable number.

2174149 is a deficient number, since it is larger than the sum of its proper divisors (4391).

2174149 is an equidigital number, since it uses as much as digits as its factorization.

2174149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390.

The product of its digits is 2016, while the sum is 28.

The square root of 2174149 is about 1474.4995761274. The cubic root of 2174149 is about 129.5477182365.

The spelling of 2174149 in words is "two million, one hundred seventy-four thousand, one hundred forty-nine".