5131228957 has 4 divisors (see below), whose sum is σ = 5132772736. Its totient is φ = 5129685180.

The previous prime is 5131228951. The next prime is 5131228967. The reversal of 5131228957 is 7598221315.

It is a happy number.

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 5131228957 - 2³¹ = 2983745309 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 (5131228951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766893 + ... + 773554.

It is an arithmetic number, because the mean of its divisors is an integer number (1283193184).

Almost surely, 2^5131228957 is an apocalyptic number.

It is an amenable number.

5131228957 is a deficient number, since it is larger than the sum of its proper divisors (1543779).

5131228957 is a wasteful number, since it uses less digits than its factorization.

5131228957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543778.

The product of its digits is 151200, while the sum is 43.

The square root of 5131228957 is about 71632.5970281687. The cubic root of 5131228957 is about 1724.8068348569.

The spelling of 5131228957 in words is "five billion, one hundred thirty-one million, two hundred twenty-eight thousand, nine hundred fifty-seven".