2149504543 has 2 divisors, whose sum is σ = 2149504544. Its totient is φ = 2149504542.

The previous prime is 2149504507. The next prime is 2149504573. The reversal of 2149504543 is 3454059412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2149504543 - 2¹³ = 2149496351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149504573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074752271 + 1074752272.

It is an arithmetic number, because the mean of its divisors is an integer number (1074752272).

Almost surely, 2^2149504543 is an apocalyptic number.

2149504543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149504543 is an equidigital number, since it uses as much as digits as its factorization.

2149504543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 2149504543 is about 46362.7495194148. The cubic root of 2149504543 is about 1290.5637307382.

The spelling of 2149504543 in words is "two billion, one hundred forty-nine million, five hundred four thousand, five hundred forty-three".