63149729 has 8 divisors (see below), whose sum is σ = 63980928. Its totient is φ = 62324080.

The previous prime is 63149699. The next prime is 63149741. The reversal of 63149729 is 92794136.

63149729 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 63149729 - 2⁸ = 63149473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63149029) 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, 24584 + ... + 27030.

It is an arithmetic number, because the mean of its divisors is an integer number (7997616).

Almost surely, 2^63149729 is an apocalyptic number.

It is an amenable number.

63149729 is a deficient number, since it is larger than the sum of its proper divisors (831199).

63149729 is a wasteful number, since it uses less digits than its factorization.

63149729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its digits is 81648, while the sum is 41.

The square root of 63149729 is about 7946.6803761067. The cubic root of 63149729 is about 398.2206990392.

The spelling of 63149729 in words is "sixty-three million, one hundred forty-nine thousand, seven hundred twenty-nine".