63994149 has 12 divisors (see below), whose sum is σ = 92835756. Its totient is φ = 42478272.

The previous prime is 63994141. The next prime is 63994163. The reversal of 63994149 is 94149936.

63994149 is a `hidden beast` number, since 639 + 9 + 4 + 1 + 4 + 9 = 666.

63994149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4040100 + 59954049 = 2010^2 + 7743^2 .

It is not a de Polignac number, because 63994149 - 2³ = 63994141 is a prime.

It is a super-2 number, since 2×63994149² = 8190502212468402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63994141) 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 11 ways as a sum of consecutive naturals, for example, 13162 + ... + 17355.

It is an arithmetic number, because the mean of its divisors is an integer number (7736313).

Almost surely, 2^63994149 is an apocalyptic number.

It is an amenable number.

63994149 is a deficient number, since it is larger than the sum of its proper divisors (28841607).

63994149 is a wasteful number, since it uses less digits than its factorization.

63994149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30756 (or 30753 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 63994149 is about 7999.6343041417. The cubic root of 63994149 is about 399.9878100452.

The spelling of 63994149 in words is "sixty-three million, nine hundred ninety-four thousand, one hundred forty-nine".