63490139 has 8 divisors (see below), whose sum is σ = 65630208. Its totient is φ = 61355880.

The previous prime is 63490129. The next prime is 63490157. The reversal of 63490139 is 93109436.

63490139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63490139 - 2⁴ = 63490123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63490099 and 63490108.

It is not an unprimeable number, because it can be changed into a prime (63490129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39734 + ... + 41300.

It is an arithmetic number, because the mean of its divisors is an integer number (8203776).

Almost surely, 2^63490139 is an apocalyptic number.

63490139 is a deficient number, since it is larger than the sum of its proper divisors (2140069).

63490139 is a wasteful number, since it uses less digits than its factorization.

63490139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 63490139 is about 7968.0699670623. The cubic root of 63490139 is about 398.9349563050.

The spelling of 63490139 in words is "sixty-three million, four hundred ninety thousand, one hundred thirty-nine".