2106537 has 4 divisors (see below), whose sum is σ = 2808720. Its totient is φ = 1404356.

The previous prime is 2106529. The next prime is 2106551. The reversal of 2106537 is 7356012.

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.

It is a cyclic number.

It is not a de Polignac number, because 2106537 - 2³ = 2106529 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2106337) 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, 351087 + ... + 351092.

It is an arithmetic number, because the mean of its divisors is an integer number (702180).

2^2106537 is an apocalyptic number.

It is an amenable number.

2106537 is a deficient number, since it is larger than the sum of its proper divisors (702183).

2106537 is an equidigital number, since it uses as much as digits as its factorization.

2106537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702182.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 2106537 is about 1451.3914013801. The cubic root of 2106537 is about 128.1906541961.

The spelling of 2106537 in words is "two million, one hundred six thousand, five hundred thirty-seven".