650340101 has 4 divisors (see below), whose sum is σ = 650745900. Its totient is φ = 649934304.

The previous prime is 650340091. The next prime is 650340121. The reversal of 650340101 is 101043056.

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 382984900 + 267355201 = 19570^2 + 16351^2 .

It is a cyclic number.

It is not a de Polignac number, because 650340101 - 2¹⁰ = 650339077 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 (650340121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200486 + ... + 203703.

It is an arithmetic number, because the mean of its divisors is an integer number (162686475).

Almost surely, 2^650340101 is an apocalyptic number.

It is an amenable number.

650340101 is a deficient number, since it is larger than the sum of its proper divisors (405799).

650340101 is a wasteful number, since it uses less digits than its factorization.

650340101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405798.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 650340101 is about 25501.7666250791. The cubic root of 650340101 is about 866.3901604270.

Adding to 650340101 its reverse (101043056), we get a palindrome (751383157).

The spelling of 650340101 in words is "six hundred fifty million, three hundred forty thousand, one hundred one".