4945545 has 48 divisors (see below), whose sum is σ = 9539712. Its totient is φ = 2350080.

The previous prime is 4945541. The next prime is 4945553. The reversal of 4945545 is 5455494.

It is not a de Polignac number, because 4945545 - 2² = 4945541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4945541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47964 + ... + 48066.

It is an arithmetic number, because the mean of its divisors is an integer number (198744).

Almost surely, 2^4945545 is an apocalyptic number.

4945545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4945545 is a deficient number, since it is larger than the sum of its proper divisors (4594167).

4945545 is a wasteful number, since it uses less digits than its factorization.

4945545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 219 counting only the distinct ones).

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

The square root of 4945545 is about 2223.8581339645. The cubic root of 4945545 is about 170.3745490323.

It can be divided in two parts, 4 and 945545, that added together give a palindrome (945549).

The spelling of 4945545 in words is "four million, nine hundred forty-five thousand, five hundred forty-five".