3158318243 has 2 divisors, whose sum is σ = 3158318244. Its totient is φ = 3158318242.

The previous prime is 3158318237. The next prime is 3158318279. The reversal of 3158318243 is 3428138513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3158318243 - 2⁴ = 3158318227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3158318197 and 3158318206.

It is not a weakly prime, because it can be changed into another prime (3158318543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579159121 + 1579159122.

It is an arithmetic number, because the mean of its divisors is an integer number (1579159122).

Almost surely, 2^3158318243 is an apocalyptic number.

3158318243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3158318243 is an equidigital number, since it uses as much as digits as its factorization.

3158318243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 3158318243 is about 56198.9167422291. The cubic root of 3158318243 is about 1467.1864122195.

The spelling of 3158318243 in words is "three billion, one hundred fifty-eight million, three hundred eighteen thousand, two hundred forty-three".