5091431 has 4 divisors (see below), whose sum is σ = 5128200. Its totient is φ = 5054664.

The previous prime is 5091413. The next prime is 5091451. The reversal of 5091431 is 1341905.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5091431 - 2⁶ = 5091367 is a prime.

It is a super-2 number, since 2×5091431² = 51845339255522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5091397 and 5091406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091451) 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, 18176 + ... + 18453.

It is an arithmetic number, because the mean of its divisors is an integer number (1282050).

Almost surely, 2^5091431 is an apocalyptic number.

5091431 is a deficient number, since it is larger than the sum of its proper divisors (36769).

5091431 is a wasteful number, since it uses less digits than its factorization.

5091431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36768.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 5091431 is about 2256.4199520479. The cubic root of 5091431 is about 172.0336039445.

The spelling of 5091431 in words is "five million, ninety-one thousand, four hundred thirty-one".