5181413 has 4 divisors (see below), whose sum is σ = 5486220. Its totient is φ = 4876608.

The previous prime is 5181391. The next prime is 5181431. The reversal of 5181413 is 3141815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3141815 = 5 ⋅628363.

It can be written as a sum of positive squares in 2 ways, for example, as 4255969 + 925444 = 2063^2 + 962^2 .

It is a cyclic number.

It is not a de Polignac number, because 5181413 - 2⁶ = 5181349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181013) 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, 152378 + ... + 152411.

It is an arithmetic number, because the mean of its divisors is an integer number (1371555).

Almost surely, 2^5181413 is an apocalyptic number.

It is an amenable number.

5181413 is a deficient number, since it is larger than the sum of its proper divisors (304807).

5181413 is a wasteful number, since it uses less digits than its factorization.

5181413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304806.

The product of its digits is 480, while the sum is 23.

The square root of 5181413 is about 2276.2717324608. The cubic root of 5181413 is about 173.0411542975.

The spelling of 5181413 in words is "five million, one hundred eighty-one thousand, four hundred thirteen".