4547538 has 12 divisors (see below), whose sum is σ = 9853038. Its totient is φ = 1515840.

The previous prime is 4547531. The next prime is 4547539. The reversal of 4547538 is 8357454.

It can be written as a sum of positive squares in only one way, i.e., 4524129 + 23409 = 2127^2 + 153^2 .

It is a super-2 number, since 2×4547538² = 41360203722888, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁷ + 5² + 4¹¹ + 7 + 5⁶ + 3¹⁰ + 8⁶ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4547531) 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 5 ways as a sum of consecutive naturals, for example, 126303 + ... + 126338.

Almost surely, 2^4547538 is an apocalyptic number.

4547538 is an abundant number, since it is smaller than the sum of its proper divisors (5305500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4547538 is a wasteful number, since it uses less digits than its factorization.

4547538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252649 (or 252646 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 4547538 is about 2132.4957209805. The cubic root of 4547538 is about 165.6756865396.

The spelling of 4547538 in words is "four million, five hundred forty-seven thousand, five hundred thirty-eight".