2138574343 has 2 divisors, whose sum is σ = 2138574344. Its totient is φ = 2138574342.

The previous prime is 2138574331. The next prime is 2138574349. The reversal of 2138574343 is 3434758312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2138574343 - 2⁵ = 2138574311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2138574296 and 2138574305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2138574349) 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 as a sum of consecutive naturals, namely, 1069287171 + 1069287172.

It is an arithmetic number, because the mean of its divisors is an integer number (1069287172).

Almost surely, 2^2138574343 is an apocalyptic number.

2138574343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138574343 is an equidigital number, since it uses as much as digits as its factorization.

2138574343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 2138574343 is about 46244.7223259044. The cubic root of 2138574343 is about 1288.3725130277.

The spelling of 2138574343 in words is "two billion, one hundred thirty-eight million, five hundred seventy-four thousand, three hundred forty-three".