5131121 has 4 divisors (see below), whose sum is σ = 5401200. Its totient is φ = 4861044.

The previous prime is 5131111. The next prime is 5131141. The reversal of 5131121 is 1211315.

5131121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5131121 - 2¹⁴ = 5114737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5131096 and 5131105.

It is not an unprimeable number, because it can be changed into a prime (5131111) 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, 135011 + ... + 135048.

It is an arithmetic number, because the mean of its divisors is an integer number (1350300).

Almost surely, 2^5131121 is an apocalyptic number.

It is an amenable number.

5131121 is a deficient number, since it is larger than the sum of its proper divisors (270079).

5131121 is a wasteful number, since it uses less digits than its factorization.

5131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270078.

The product of its digits is 30, while the sum is 14.

The square root of 5131121 is about 2265.1977838591. The cubic root of 5131121 is about 172.4794738581.

Adding to 5131121 its reverse (1211315), we get a palindrome (6342436).

The spelling of 5131121 in words is "five million, one hundred thirty-one thousand, one hundred twenty-one".