2129941 has 8 divisors (see below), whose sum is σ = 2336544. Its totient is φ = 1925520.

The previous prime is 2129903. The next prime is 2129951. The reversal of 2129941 is 1499212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2129941 - 2¹¹ = 2127893 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (292068).

2^2129941 is an apocalyptic number.

It is an amenable number.

2129941 is a deficient number, since it is larger than the sum of its proper divisors (206603).

2129941 is a wasteful number, since it uses less digits than its factorization.

2129941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its digits is 1296, while the sum is 28.

The square root of 2129941 is about 1459.4317387257. The cubic root of 2129941 is about 128.6636471262.

It can be divided in two parts, 212 and 9941, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 2129941 in words is "two million, one hundred twenty-nine thousand, nine hundred forty-one".