643006150 has 24 divisors (see below), whose sum is σ = 1197137664. Its totient is φ = 256956000.

The previous prime is 643006141. The next prime is 643006153. The reversal of 643006150 is 51600346.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (643006153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51964 + ... + 63136.

It is an arithmetic number, because the mean of its divisors is an integer number (49880736).

Almost surely, 2^643006150 is an apocalyptic number.

643006150 is a deficient number, since it is larger than the sum of its proper divisors (554131514).

643006150 is a wasteful number, since it uses less digits than its factorization.

643006150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12336 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 643006150 is about 25357.5659320843. The cubic root of 643006150 is about 863.1210509839.

Adding to 643006150 its reverse (51600346), we get a palindrome (694606496).

The spelling of 643006150 in words is "six hundred forty-three million, six thousand, one hundred fifty".