2149005 has 16 divisors (see below), whose sum is σ = 3588480. Its totient is φ = 1096128.

The previous prime is 2149003. The next prime is 2149031. The reversal of 2149005 is 5009412.

It is not a de Polignac number, because 2149005 - 2¹ = 2149003 is a prime.

It is a Curzon number.

2149005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2770 + ... + 3459.

It is an arithmetic number, because the mean of its divisors is an integer number (224280).

2^2149005 is an apocalyptic number.

It is an amenable number.

2149005 is a deficient number, since it is larger than the sum of its proper divisors (1439475).

2149005 is a wasteful number, since it uses less digits than its factorization.

2149005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2149005 is about 1465.9484984132. The cubic root of 2149005 is about 129.0463747694.

The spelling of 2149005 in words is "two million, one hundred forty-nine thousand, five".