4539549 has 16 divisors (see below), whose sum is σ = 6982272. Its totient is φ = 2569728.

The previous prime is 4539541. The next prime is 4539551. The reversal of 4539549 is 9459354.

It is not a de Polignac number, because 4539549 - 2³ = 4539541 is a prime.

It is a Curzon number.

4539549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417 + ... + 3329.

It is an arithmetic number, because the mean of its divisors is an integer number (436392).

Almost surely, 2^4539549 is an apocalyptic number.

It is an amenable number.

4539549 is a deficient number, since it is larger than the sum of its proper divisors (2442723).

4539549 is a wasteful number, since it uses less digits than its factorization.

4539549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its digits is 97200, while the sum is 39.

The square root of 4539549 is about 2130.6217402439. The cubic root of 4539549 is about 165.5786113826.

The spelling of 4539549 in words is "four million, five hundred thirty-nine thousand, five hundred forty-nine".