63155143 has 2 divisors, whose sum is σ = 63155144. Its totient is φ = 63155142.

The previous prime is 63155123. The next prime is 63155149. The reversal of 63155143 is 34155136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63155143 - 2⁵ = 63155111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63155149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31577571 + 31577572.

It is an arithmetic number, because the mean of its divisors is an integer number (31577572).

Almost surely, 2^63155143 is an apocalyptic number.

63155143 is a deficient number, since it is larger than the sum of its proper divisors (1).

63155143 is an equidigital number, since it uses as much as digits as its factorization.

63155143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 63155143 is about 7947.0210141914. The cubic root of 63155143 is about 398.2320788994.

The spelling of 63155143 in words is "sixty-three million, one hundred fifty-five thousand, one hundred forty-three".