5131559 has 4 divisors (see below), whose sum is σ = 5137704. Its totient is φ = 5125416.

The previous prime is 5131543. The next prime is 5131571. The reversal of 5131559 is 9551315.

It is a happy number.

5131559 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 an emirpimes, since its reverse is a distinct semiprime: 9551315 = 5 ⋅1910263.

It is a cyclic number.

It is not a de Polignac number, because 5131559 - 2⁴ = 5131543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131459) 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, 1577 + ... + 3570.

It is an arithmetic number, because the mean of its divisors is an integer number (1284426).

Almost surely, 2^5131559 is an apocalyptic number.

5131559 is a deficient number, since it is larger than the sum of its proper divisors (6145).

5131559 is an equidigital number, since it uses as much as digits as its factorization.

5131559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144.

The product of its digits is 3375, while the sum is 29.

The square root of 5131559 is about 2265.2944620954. The cubic root of 5131559 is about 172.4843814186.

The spelling of 5131559 in words is "five million, one hundred thirty-one thousand, five hundred fifty-nine".