5318431 has 2 divisors, whose sum is σ = 5318432. Its totient is φ = 5318430.

The previous prime is 5318363. The next prime is 5318441. The reversal of 5318431 is 1348135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5318431 - 2⁷ = 5318303 is a prime.

It is a super-2 number, since 2×5318431² = 56571416603522, which contains 22 as substring.

5318431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5318396 and 5318405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5318441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2659215 + 2659216.

It is an arithmetic number, because the mean of its divisors is an integer number (2659216).

Almost surely, 2^5318431 is an apocalyptic number.

5318431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5318431 is an equidigital number, since it uses as much as digits as its factorization.

5318431 is an evil number, because the sum of its binary digits is even.

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

The square root of 5318431 is about 2306.1723699672. The cubic root of 5318431 is about 174.5532113047.

The spelling of 5318431 in words is "five million, three hundred eighteen thousand, four hundred thirty-one".