4549545 has 96 divisors (see below), whose sum is σ = 10692864. Its totient is φ = 1728000.

The previous prime is 4549537. The next prime is 4549547. The reversal of 4549545 is 5459454.

It is not a de Polignac number, because 4549545 - 2³ = 4549537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4549547) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44995 + ... + 45095.

It is an arithmetic number, because the mean of its divisors is an integer number (111384).

Almost surely, 2^4549545 is an apocalyptic number.

4549545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4549545 is an abundant number, since it is smaller than the sum of its proper divisors (6143319).

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

4549545 is a wasteful number, since it uses less digits than its factorization.

4549545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 140 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 4549545 is about 2132.9662444586. The cubic root of 4549545 is about 165.7000559309.

Subtracting 4549545 from its reverse (5459454), we obtain a palindrome (909909).

It can be divided in two parts, 454 and 9545, that added together give a palindrome (9999).

The spelling of 4549545 in words is "four million, five hundred forty-nine thousand, five hundred forty-five".