2120637 has 8 divisors (see below), whose sum is σ = 2875680. Its totient is φ = 1389680.

The previous prime is 2120621. The next prime is 2120639. The reversal of 2120637 is 7360212.

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 2120637 - 2⁴ = 2120621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5814 + ... + 6167.

It is an arithmetic number, because the mean of its divisors is an integer number (359460).

2^2120637 is an apocalyptic number.

It is an amenable number.

2120637 is a deficient number, since it is larger than the sum of its proper divisors (755043).

2120637 is a wasteful number, since it uses less digits than its factorization.

2120637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12043.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2120637 is about 1456.2407081249. The cubic root of 2120637 is about 128.4760309980.

Adding to 2120637 its reverse (7360212), we get a palindrome (9480849).

The spelling of 2120637 in words is "two million, one hundred twenty thousand, six hundred thirty-seven".