2129197 has 12 divisors (see below), whose sum is σ = 2608320. Its totient is φ = 1728216.

The previous prime is 2129177. The next prime is 2129203. The reversal of 2129197 is 7919212.

2129197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2129197 - 2⁷ = 2129069 is a prime.

2129197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129107) 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 in 11 ways as a sum of consecutive naturals, for example, 213 + ... + 2074.

It is an arithmetic number, because the mean of its divisors is an integer number (217360).

2^2129197 is an apocalyptic number.

It is an amenable number.

2129197 is a deficient number, since it is larger than the sum of its proper divisors (479123).

2129197 is a wasteful number, since it uses less digits than its factorization.

2129197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320 (or 2313 counting only the distinct ones).

The product of its digits is 2268, while the sum is 31.

The square root of 2129197 is about 1459.1768227326. The cubic root of 2129197 is about 128.6486644105.

It can be divided in two parts, 212 and 9197, that added together give a square (9409 = 97²).

The spelling of 2129197 in words is "two million, one hundred twenty-nine thousand, one hundred ninety-seven".