8145539 has 4 divisors (see below), whose sum is σ = 8204280. Its totient is φ = 8086800.

The previous prime is 8145479. The next prime is 8145541. The reversal of 8145539 is 9355418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9355418 = 2 ⋅4677709.

It is a cyclic number.

It is not a de Polignac number, because 8145539 - 2⁸ = 8145283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8145499 and 8145508.

It is not an unprimeable number, because it can be changed into a prime (8145569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29162 + ... + 29439.

It is an arithmetic number, because the mean of its divisors is an integer number (2051070).

Almost surely, 2^8145539 is an apocalyptic number.

8145539 is a deficient number, since it is larger than the sum of its proper divisors (58741).

8145539 is a wasteful number, since it uses less digits than its factorization.

8145539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58740.

The product of its digits is 21600, while the sum is 35.

The square root of 8145539 is about 2854.0390677074. The cubic root of 8145539 is about 201.2055437212.

The spelling of 8145539 in words is "eight million, one hundred forty-five thousand, five hundred thirty-nine".