63239147 has 4 divisors (see below), whose sum is σ = 63308880. Its totient is φ = 63169416.

The previous prime is 63239131. The next prime is 63239159. The reversal of 63239147 is 74193236.

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 63239147 - 2⁴ = 63239131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63239107) 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, 33488 + ... + 35325.

It is an arithmetic number, because the mean of its divisors is an integer number (15827220).

Almost surely, 2^63239147 is an apocalyptic number.

63239147 is a deficient number, since it is larger than the sum of its proper divisors (69733).

63239147 is an equidigital number, since it uses as much as digits as its factorization.

63239147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69732.

The product of its digits is 27216, while the sum is 35.

The square root of 63239147 is about 7952.3045087572. The cubic root of 63239147 is about 398.4085663275.

The spelling of 63239147 in words is "sixty-three million, two hundred thirty-nine thousand, one hundred forty-seven".