2171149 has 8 divisors (see below), whose sum is σ = 2300000. Its totient is φ = 2043792.

The previous prime is 2171119. The next prime is 2171159. The reversal of 2171149 is 9411712.

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

It is not a de Polignac number, because 2171149 - 2⁷ = 2171021 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4102 + ... + 4600.

It is an arithmetic number, because the mean of its divisors is an integer number (287500).

2^2171149 is an apocalyptic number.

It is an amenable number.

2171149 is a deficient number, since it is larger than the sum of its proper divisors (128851).

2171149 is a wasteful number, since it uses less digits than its factorization.

2171149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 504, while the sum is 25.

The square root of 2171149 is about 1473.4819306663. The cubic root of 2171149 is about 129.4881053261.

The spelling of 2171149 in words is "two million, one hundred seventy-one thousand, one hundred forty-nine".