63143899 has 36 divisors (see below), whose sum is σ = 84275184. Its totient is φ = 47021184.

The previous prime is 63143893. The next prime is 63143903. The reversal of 63143899 is 99834136.

It is not a de Polignac number, because 63143899 - 2⁷ = 63143771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63143893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3714339 + ... + 3714355.

Almost surely, 2^63143899 is an apocalyptic number.

63143899 is a deficient number, since it is larger than the sum of its proper divisors (21131285).

63143899 is an frugal number, since it uses more digits than its factorization.

63143899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 37 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The square root of 63143899 is about 7946.3135478032. The cubic root of 63143899 is about 398.2084440480.

The spelling of 63143899 in words is "sixty-three million, one hundred forty-three thousand, eight hundred ninety-nine".