2061537 has 4 divisors (see below), whose sum is σ = 2748720. Its totient is φ = 1374356.

The previous prime is 2061533. The next prime is 2061551. The reversal of 2061537 is 7351602.

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 2061537 - 2² = 2061533 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2061533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343587 + ... + 343592.

It is an arithmetic number, because the mean of its divisors is an integer number (687180).

2^2061537 is an apocalyptic number.

It is an amenable number.

2061537 is a deficient number, since it is larger than the sum of its proper divisors (687183).

2061537 is an equidigital number, since it uses as much as digits as its factorization.

2061537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687182.

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

The square root of 2061537 is about 1435.8053489244. The cubic root of 2061537 is about 127.2712700359.

The spelling of 2061537 in words is "two million, sixty-one thousand, five hundred thirty-seven".