2129237 has 6 divisors (see below), whose sum is σ = 2340534. Its totient is φ = 1935560.

The previous prime is 2129227. The next prime is 2129261. The reversal of 2129237 is 7329212.

2129237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1234321 + 894916 = 1111^2 + 946^2 .

It is not a de Polignac number, because 2129237 - 2⁴ = 2129221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129207) 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 5 ways as a sum of consecutive naturals, for example, 8678 + ... + 8919.

It is an arithmetic number, because the mean of its divisors is an integer number (390089).

2^2129237 is an apocalyptic number.

It is an amenable number.

2129237 is a deficient number, since it is larger than the sum of its proper divisors (211297).

2129237 is a wasteful number, since it uses less digits than its factorization.

2129237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17619 (or 17608 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 2129237 is about 1459.1905290263. The cubic root of 2129237 is about 128.6494700216.

It can be divided in two parts, 212 and 9237, that added together give a palindrome (9449).

The spelling of 2129237 in words is "two million, one hundred twenty-nine thousand, two hundred thirty-seven".