4539557 has 6 divisors (see below), whose sum is σ = 4989894. Its totient is φ = 4126760.

The previous prime is 4539551. The next prime is 4539569. The reversal of 4539557 is 7559354.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3876961 + 662596 = 1969^2 + 814^2 .

It is not a de Polignac number, because 4539557 - 2⁴ = 4539541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4539557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18638 + ... + 18879.

It is an arithmetic number, because the mean of its divisors is an integer number (831649).

Almost surely, 2^4539557 is an apocalyptic number.

It is an amenable number.

4539557 is a deficient number, since it is larger than the sum of its proper divisors (450337).

4539557 is a wasteful number, since it uses less digits than its factorization.

4539557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37539 (or 37528 counting only the distinct ones).

The product of its digits is 94500, while the sum is 38.

The square root of 4539557 is about 2130.6236176294. The cubic root of 4539557 is about 165.5787086484.

The spelling of 4539557 in words is "four million, five hundred thirty-nine thousand, five hundred fifty-seven".