5431431 has 4 divisors (see below), whose sum is σ = 7241912. Its totient is φ = 3620952.

The previous prime is 5431399. The next prime is 5431441. The reversal of 5431431 is 1341345.

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

It is not a de Polignac number, because 5431431 - 2⁵ = 5431399 is a prime.

It is a super-2 number, since 2×5431431² = 59000885415522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5431398 and 5431407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431441) 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, 905236 + ... + 905241.

It is an arithmetic number, because the mean of its divisors is an integer number (1810478).

Almost surely, 2^5431431 is an apocalyptic number.

5431431 is a deficient number, since it is larger than the sum of its proper divisors (1810481).

5431431 is a wasteful number, since it uses less digits than its factorization.

5431431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810480.

The product of its digits is 720, while the sum is 21.

The square root of 5431431 is about 2330.5430697586. The cubic root of 5431431 is about 175.7807941578.

Adding to 5431431 its reverse (1341345), we get a palindrome (6772776).

It can be divided in two parts, 54314 and 31, that added together give a palindrome (54345).

The spelling of 5431431 in words is "five million, four hundred thirty-one thousand, four hundred thirty-one".