2149471 has 2 divisors, whose sum is σ = 2149472. Its totient is φ = 2149470.

The previous prime is 2149453. The next prime is 2149493. The reversal of 2149471 is 1749412.

2149471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149471 is a prime.

It is a super-3 number, since 3×2149471³ = 29793122691979242333, which contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074735 + 1074736.

It is an arithmetic number, because the mean of its divisors is an integer number (1074736).

2^2149471 is an apocalyptic number.

2149471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149471 is an equidigital number, since it uses as much as digits as its factorization.

2149471 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2149471 is about 1466.1074312614. The cubic root of 2149471 is about 129.0557017625.

The spelling of 2149471 in words is "two million, one hundred forty-nine thousand, four hundred seventy-one".