5131331 has 4 divisors (see below), whose sum is σ = 5433192. Its totient is φ = 4829472.

The previous prime is 5131307. The next prime is 5131333. The reversal of 5131331 is 1331315.

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 5131331 - 2⁶ = 5131267 is a prime.

It is a super-2 number, since 2×5131331² = 52661115663122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 301843 = 5131331 / (5 + 1 + 3 + 1 + 3 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131333) 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, 150905 + ... + 150938.

It is an arithmetic number, because the mean of its divisors is an integer number (1358298).

Almost surely, 2^5131331 is an apocalyptic number.

5131331 is a deficient number, since it is larger than the sum of its proper divisors (301861).

5131331 is a wasteful number, since it uses less digits than its factorization.

5131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301860.

The product of its digits is 135, while the sum is 17.

The square root of 5131331 is about 2265.2441369530. The cubic root of 5131331 is about 172.4818268330.

Adding to 5131331 its reverse (1331315), we get a palindrome (6462646).

The spelling of 5131331 in words is "five million, one hundred thirty-one thousand, three hundred thirty-one".