4561481 has 4 divisors (see below), whose sum is σ = 4569492. Its totient is φ = 4553472.

The previous prime is 4561477. The next prime is 4561489. The reversal of 4561481 is 1841654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1841654 = 2 ⋅920827.

It can be written as a sum of positive squares in 2 ways, for example, as 379456 + 4182025 = 616^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 4561481 - 2² = 4561477 is a prime.

It is a super-2 number, since 2×4561481² = 41614217826722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4561489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3080 + ... + 4313.

It is an arithmetic number, because the mean of its divisors is an integer number (1142373).

Almost surely, 2^4561481 is an apocalyptic number.

It is an amenable number.

4561481 is a deficient number, since it is larger than the sum of its proper divisors (8011).

4561481 is an equidigital number, since it uses as much as digits as its factorization.

4561481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010.

The product of its digits is 3840, while the sum is 29.

The square root of 4561481 is about 2135.7623931514. The cubic root of 4561481 is about 165.8448373514.

The spelling of 4561481 in words is "four million, five hundred sixty-one thousand, four hundred eighty-one".