4845561 has 32 divisors (see below), whose sum is σ = 8006400. Its totient is φ = 2596608.

The previous prime is 4845539. The next prime is 4845569. The reversal of 4845561 is 1655484.

It is not a de Polignac number, because 4845561 - 2¹³ = 4837369 is a prime.

It is a super-2 number, since 2×4845561² = 46958922809442, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4845569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17355 + ... + 17631.

It is an arithmetic number, because the mean of its divisors is an integer number (250200).

Almost surely, 2^4845561 is an apocalyptic number.

It is an amenable number.

4845561 is a deficient number, since it is larger than the sum of its proper divisors (3160839).

4845561 is a wasteful number, since it uses less digits than its factorization.

4845561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 304 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 4845561 is about 2201.2635008104. The cubic root of 4845561 is about 169.2185704123.

It can be divided in two parts, 48455 and 61, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 4845561 in words is "four million, eight hundred forty-five thousand, five hundred sixty-one".