537545 has 4 divisors (see below), whose sum is σ = 645060. Its totient is φ = 430032.

The previous prime is 537527. The next prime is 537547. The reversal of 537545 is 545735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545735 = 5 ⋅109147.

It can be written as a sum of positive squares in 2 ways, for example, as 182329 + 355216 = 427^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 537545 - 2¹⁴ = 521161 is a prime.

It is a Curzon number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (537547) 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, 53750 + ... + 53759.

It is an arithmetic number, because the mean of its divisors is an integer number (161265).

2⁵³⁷⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

537545 is a deficient number, since it is larger than the sum of its proper divisors (107515).

537545 is a wasteful number, since it uses less digits than its factorization.

537545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107514.

The product of its digits is 10500, while the sum is 29.

The square root of 537545 is about 733.1746040337. The cubic root of 537545 is about 81.3089355439.

The spelling of 537545 in words is "five hundred thirty-seven thousand, five hundred forty-five".