5147521031 has 4 divisors (see below), whose sum is σ = 5148070200. Its totient is φ = 5146971864.

The previous prime is 5147520997. The next prime is 5147521037. The reversal of 5147521031 is 1301257415.

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 5147521031 - 2¹⁸ = 5147258887 is a prime.

It is a super-2 number, since 2×5147521031² = 52993945529174605922, 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 = 5147520985 and 5147521003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5147521037) 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, 260276 + ... + 279353.

It is an arithmetic number, because the mean of its divisors is an integer number (1287017550).

Almost surely, 2^5147521031 is an apocalyptic number.

5147521031 is a deficient number, since it is larger than the sum of its proper divisors (549169).

5147521031 is an equidigital number, since it uses as much as digits as its factorization.

5147521031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549168.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 5147521031 is about 71746.2265976407. The cubic root of 5147521031 is about 1726.6303741115.

Adding to 5147521031 its reverse (1301257415), we get a palindrome (6448778446).

The spelling of 5147521031 in words is "five billion, one hundred forty-seven million, five hundred twenty-one thousand, thirty-one".