63149983 has 4 divisors (see below), whose sum is σ = 68007688. Its totient is φ = 58292280.

The previous prime is 63149903. The next prime is 63149987. The reversal of 63149983 is 38994136.

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 63149983 - 2¹⁷ = 63018911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63149987) 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, 2428833 + ... + 2428858.

It is an arithmetic number, because the mean of its divisors is an integer number (17001922).

Almost surely, 2^63149983 is an apocalyptic number.

63149983 is a deficient number, since it is larger than the sum of its proper divisors (4857705).

63149983 is a wasteful number, since it uses less digits than its factorization.

63149983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857704.

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

The square root of 63149983 is about 7946.6963576067. The cubic root of 63149983 is about 398.2212329445.

The spelling of 63149983 in words is "sixty-three million, one hundred forty-nine thousand, nine hundred eighty-three".