2042537 has 4 divisors (see below), whose sum is σ = 2334336. Its totient is φ = 1750740.

The previous prime is 2042531. The next prime is 2042549. The reversal of 2042537 is 7352402.

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 an emirpimes, since its reverse is a distinct semiprime: 7352402 = 2 ⋅3676201.

It is a cyclic number.

It is not a de Polignac number, because 2042537 - 2⁸ = 2042281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145889 + ... + 145902.

It is an arithmetic number, because the mean of its divisors is an integer number (583584).

2^2042537 is an apocalyptic number.

It is an amenable number.

2042537 is a deficient number, since it is larger than the sum of its proper divisors (291799).

2042537 is an equidigital number, since it uses as much as digits as its factorization.

2042537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291798.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2042537 is about 1429.1735373985. The cubic root of 2042537 is about 126.8790673063.

Adding to 2042537 its reverse (7352402), we get a palindrome (9394939).

The spelling of 2042537 in words is "two million, forty-two thousand, five hundred thirty-seven".