63734149 has 4 divisors (see below), whose sum is σ = 63898380. Its totient is φ = 63569920.

The previous prime is 63734107. The next prime is 63734159. The reversal of 63734149 is 94143736.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43797924 + 19936225 = 6618^2 + 4465^2 .

It is a cyclic number.

It is not a de Polignac number, because 63734149 - 2¹¹ = 63732101 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 (63734159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81532 + ... + 82309.

It is an arithmetic number, because the mean of its divisors is an integer number (15974595).

Almost surely, 2^63734149 is an apocalyptic number.

It is an amenable number.

63734149 is a deficient number, since it is larger than the sum of its proper divisors (164231).

63734149 is a wasteful number, since it uses less digits than its factorization.

63734149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164230.

The product of its digits is 54432, while the sum is 37.

The square root of 63734149 is about 7983.3670215016. The cubic root of 63734149 is about 399.4453750834.

The spelling of 63734149 in words is "sixty-three million, seven hundred thirty-four thousand, one hundred forty-nine".