4591481 has 4 divisors (see below), whose sum is σ = 4654452. Its totient is φ = 4528512.

The previous prime is 4591463. The next prime is 4591487. The reversal of 4591481 is 1841954.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2835856 + 1755625 = 1684^2 + 1325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4591481 is a prime.

It is a super-2 number, since 2×4591481² = 42163395546722, 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 (4591487) 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, 31376 + ... + 31521.

It is an arithmetic number, because the mean of its divisors is an integer number (1163613).

Almost surely, 2^4591481 is an apocalyptic number.

It is an amenable number.

4591481 is a deficient number, since it is larger than the sum of its proper divisors (62971).

4591481 is an equidigital number, since it uses as much as digits as its factorization.

4591481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62970.

The product of its digits is 5760, while the sum is 32.

The square root of 4591481 is about 2142.7741364876. The cubic root of 4591481 is about 166.2076199284.

The spelling of 4591481 in words is "four million, five hundred ninety-one thousand, four hundred eighty-one".