5156210243 has 4 divisors (see below), whose sum is σ = 5156548488. Its totient is φ = 5155872000.

The previous prime is 5156210201. The next prime is 5156210249. The reversal of 5156210243 is 3420126515.

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 5156210243 - 2¹⁴ = 5156193859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5156210249) 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, 145121 + ... + 177122.

It is an arithmetic number, because the mean of its divisors is an integer number (1289137122).

Almost surely, 2^5156210243 is an apocalyptic number.

5156210243 is a deficient number, since it is larger than the sum of its proper divisors (338245).

5156210243 is a wasteful number, since it uses less digits than its factorization.

5156210243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338244.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 5156210243 is about 71806.7562489770. The cubic root of 5156210243 is about 1727.6013672862.

Adding to 5156210243 its reverse (3420126515), we get a palindrome (8576336758).

The spelling of 5156210243 in words is "five billion, one hundred fifty-six million, two hundred ten thousand, two hundred forty-three".