2143504523 has 2 divisors, whose sum is σ = 2143504524. Its totient is φ = 2143504522.

The previous prime is 2143504507. The next prime is 2143504529. The reversal of 2143504523 is 3254053412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143504523 - 2⁴ = 2143504507 is a prime.

It is a super-2 number, since 2×2143504523² = 9189223280242915058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2143504529) 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, 1071752261 + 1071752262.

It is an arithmetic number, because the mean of its divisors is an integer number (1071752262).

Almost surely, 2^2143504523 is an apocalyptic number.

2143504523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143504523 is an equidigital number, since it uses as much as digits as its factorization.

2143504523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2143504523 is about 46297.9969653116. The cubic root of 2143504523 is about 1289.3618065910.

Adding to 2143504523 its reverse (3254053412), we get a palindrome (5397557935).

The spelling of 2143504523 in words is "two billion, one hundred forty-three million, five hundred four thousand, five hundred twenty-three".