5147231 has 4 divisors (see below), whose sum is σ = 5155512. Its totient is φ = 5138952.

The previous prime is 5147213. The next prime is 5147249. The reversal of 5147231 is 1327415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1327415 = 5 ⋅265483.

It is an interprime number because it is at equal distance from previous prime (5147213) and next prime (5147249).

It is a cyclic number.

It is not a de Polignac number, because 5147231 - 2⁶ = 5147167 is a prime.

It is a super-2 number, since 2×5147231² = 52987973934722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5147197 and 5147206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5147251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3125 + ... + 4478.

It is an arithmetic number, because the mean of its divisors is an integer number (1288878).

Almost surely, 2^5147231 is an apocalyptic number.

5147231 is a deficient number, since it is larger than the sum of its proper divisors (8281).

5147231 is an equidigital number, since it uses as much as digits as its factorization.

5147231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280.

The product of its digits is 840, while the sum is 23.

The square root of 5147231 is about 2268.7509779612. The cubic root of 5147231 is about 172.6597945185.

The spelling of 5147231 in words is "five million, one hundred forty-seven thousand, two hundred thirty-one".