663053143 has 2 divisors, whose sum is σ = 663053144. Its totient is φ = 663053142.

The previous prime is 663053101. The next prime is 663053173. The reversal of 663053143 is 341350366.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663053143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663053173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331526571 + 331526572.

It is an arithmetic number, because the mean of its divisors is an integer number (331526572).

Almost surely, 2^663053143 is an apocalyptic number.

663053143 is a deficient number, since it is larger than the sum of its proper divisors (1).

663053143 is an equidigital number, since it uses as much as digits as its factorization.

663053143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 663053143 is about 25749.8183100386. The cubic root of 663053143 is about 871.9992525700. Note that the first 3 decimals are identical.

The spelling of 663053143 in words is "six hundred sixty-three million, fifty-three thousand, one hundred forty-three".