650145407 has 4 divisors (see below), whose sum is σ = 663978336. Its totient is φ = 636312480.

The previous prime is 650145371. The next prime is 650145409. The reversal of 650145407 is 704541056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 650145407 - 2⁶ = 650145343 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 (650145409) 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 3 ways as a sum of consecutive naturals, for example, 6916394 + ... + 6916487.

It is an arithmetic number, because the mean of its divisors is an integer number (165994584).

Almost surely, 2^650145407 is an apocalyptic number.

650145407 is a deficient number, since it is larger than the sum of its proper divisors (13832929).

650145407 is a wasteful number, since it uses less digits than its factorization.

650145407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13832928.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 650145407 is about 25497.9490743864. The cubic root of 650145407 is about 866.3036939760.

The spelling of 650145407 in words is "six hundred fifty million, one hundred forty-five thousand, four hundred seven".