2137199543 has 2 divisors, whose sum is σ = 2137199544. Its totient is φ = 2137199542.

The previous prime is 2137199509. The next prime is 2137199593. The reversal of 2137199543 is 3459917312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2137199543 - 2¹⁰ = 2137198519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2137199494 and 2137199503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2137199503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068599771 + 1068599772.

It is an arithmetic number, because the mean of its divisors is an integer number (1068599772).

Almost surely, 2^2137199543 is an apocalyptic number.

2137199543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137199543 is an equidigital number, since it uses as much as digits as its factorization.

2137199543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 44.

The square root of 2137199543 is about 46229.8555373040. The cubic root of 2137199543 is about 1288.0963735788.

The spelling of 2137199543 in words is "two billion, one hundred thirty-seven million, one hundred ninety-nine thousand, five hundred forty-three".