2120737 has 4 divisors (see below), whose sum is σ = 2123776. Its totient is φ = 2117700.

The previous prime is 2120731. The next prime is 2120747. The reversal of 2120737 is 7370212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2120737 - 2¹¹ = 2118689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (530944).

2^2120737 is an apocalyptic number.

It is an amenable number.

2120737 is a deficient number, since it is larger than the sum of its proper divisors (3039).

2120737 is a wasteful number, since it uses less digits than its factorization.

2120737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 2120737 is about 1456.2750427031. The cubic root of 2120737 is about 128.4780504228.

Adding to 2120737 its reverse (7370212), we get a palindrome (9490949).

The spelling of 2120737 in words is "two million, one hundred twenty thousand, seven hundred thirty-seven".