63143071 has 4 divisors (see below), whose sum is σ = 63567000. Its totient is φ = 62719144.

The previous prime is 63143057. The next prime is 63143089. The reversal of 63143071 is 17034136.

63143071 = 130² + 131² + ... + 576².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63143071 - 2¹⁵ = 63110303 is a prime.

It is a super-2 number, since 2×63143071² = 7974094830622082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63143051) 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 in 3 ways as a sum of consecutive naturals, for example, 211741 + ... + 212038.

It is an arithmetic number, because the mean of its divisors is an integer number (15891750).

Almost surely, 2^63143071 is an apocalyptic number.

63143071 is a deficient number, since it is larger than the sum of its proper divisors (423929).

63143071 is a wasteful number, since it uses less digits than its factorization.

63143071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423928.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 63143071 is about 7946.2614480018. The cubic root of 63143071 is about 398.2067034838.

The spelling of 63143071 in words is "sixty-three million, one hundred forty-three thousand, seventy-one".