63885139 has 2 divisors, whose sum is σ = 63885140. Its totient is φ = 63885138.

The previous prime is 63885137. The next prime is 63885181. The reversal of 63885139 is 93158836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63885139 - 2¹ = 63885137 is a prime.

Together with 63885137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 63885095 and 63885104.

It is not a weakly prime, because it can be changed into another prime (63885137) 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, 31942569 + 31942570.

It is an arithmetic number, because the mean of its divisors is an integer number (31942570).

Almost surely, 2^63885139 is an apocalyptic number.

63885139 is a deficient number, since it is larger than the sum of its proper divisors (1).

63885139 is an equidigital number, since it uses as much as digits as its factorization.

63885139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 63885139 is about 7992.8179636471. The cubic root of 63885139 is about 399.7605629533.

The spelling of 63885139 in words is "sixty-three million, eight hundred eighty-five thousand, one hundred thirty-nine".