2153431543 has 2 divisors, whose sum is σ = 2153431544. Its totient is φ = 2153431542.

The previous prime is 2153431537. The next prime is 2153431547. The reversal of 2153431543 is 3451343512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2153431543 - 2⁹ = 2153431031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2153431547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076715771 + 1076715772.

It is an arithmetic number, because the mean of its divisors is an integer number (1076715772).

Almost surely, 2^2153431543 is an apocalyptic number.

2153431543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153431543 is an equidigital number, since it uses as much as digits as its factorization.

2153431543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 2153431543 is about 46405.0810041314. The cubic root of 2153431543 is about 1291.3491769458.

The spelling of 2153431543 in words is "two billion, one hundred fifty-three million, four hundred thirty-one thousand, five hundred forty-three".