650134643 has 8 divisors (see below), whose sum is σ = 658854000. Its totient is φ = 641456640.

The previous prime is 650134637. The next prime is 650134657. The reversal of 650134643 is 346431056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 650134643 - 2⁴ = 650134627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650134543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21983 + ... + 42231.

It is an arithmetic number, because the mean of its divisors is an integer number (82356750).

Almost surely, 2^650134643 is an apocalyptic number.

650134643 is a deficient number, since it is larger than the sum of its proper divisors (8719357).

650134643 is a wasteful number, since it uses less digits than its factorization.

650134643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20677.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 650134643 is about 25497.7379977127. The cubic root of 650134643 is about 866.2989130227.

Adding to 650134643 its reverse (346431056), we get a palindrome (996565699).

The spelling of 650134643 in words is "six hundred fifty million, one hundred thirty-four thousand, six hundred forty-three".