4531813 has 24 divisors (see below), whose sum is σ = 5571104. Its totient is φ = 3659040.

The previous prime is 4531811. The next prime is 4531829. The reversal of 4531813 is 3181354.

It is not a de Polignac number, because 4531813 - 2¹ = 4531811 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4531811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67606 + ... + 67672.

Almost surely, 2^4531813 is an apocalyptic number.

4531813 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

4531813 is a deficient number, since it is larger than the sum of its proper divisors (1039291).

4531813 is a wasteful number, since it uses less digits than its factorization.

4531813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 134 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 4531813 is about 2128.8055336268. The cubic root of 4531813 is about 165.4845018543.

The spelling of 4531813 in words is "four million, five hundred thirty-one thousand, eight hundred thirteen".