64643150 has 48 divisors (see below), whose sum is σ = 141272208. Its totient is φ = 21696000.

The previous prime is 64643099. The next prime is 64643171. The reversal of 64643150 is 5134646.

It is a happy number.

64643150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2630 + ... + 11670.

It is an arithmetic number, because the mean of its divisors is an integer number (2943171).

Almost surely, 2^64643150 is an apocalyptic number.

64643150 is an abundant number, since it is smaller than the sum of its proper divisors (76629058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64643150 is a wasteful number, since it uses less digits than its factorization.

64643150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077 (or 9072 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 64643150 is about 8040.0963924570. The cubic root of 64643150 is about 401.3354324223.

Adding to 64643150 its reverse (5134646), we get a palindrome (69777796).

The spelling of 64643150 in words is "sixty-four million, six hundred forty-three thousand, one hundred fifty".