63149733 has 16 divisors (see below), whose sum is σ = 96782400. Its totient is φ = 40647600.

The previous prime is 63149699. The next prime is 63149741. The reversal of 63149733 is 33794136.

It is not a de Polignac number, because 63149733 - 2⁹ = 63149221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63149753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39543 + ... + 41108.

It is an arithmetic number, because the mean of its divisors is an integer number (6048900).

Almost surely, 2^63149733 is an apocalyptic number.

It is an amenable number.

63149733 is a deficient number, since it is larger than the sum of its proper divisors (33632667).

63149733 is a wasteful number, since it uses less digits than its factorization.

63149733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80689 (or 80683 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 63149733 is about 7946.6806277842. The cubic root of 63149733 is about 398.2207074472.

The spelling of 63149733 in words is "sixty-three million, one hundred forty-nine thousand, seven hundred thirty-three".