650862145 has 4 divisors (see below), whose sum is σ = 781034580. Its totient is φ = 520689712.

The previous prime is 650862137. The next prime is 650862169. The reversal of 650862145 is 541268056.

650862145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 25512²+1.

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 234334864 + 416527281 = 15308^2 + 20409^2 .

It is a cyclic number.

It is not a de Polignac number, because 650862145 - 2³ = 650862137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65086210 + ... + 65086219.

It is an arithmetic number, because the mean of its divisors is an integer number (195258645).

Almost surely, 2^650862145 is an apocalyptic number.

It is an amenable number.

650862145 is a deficient number, since it is larger than the sum of its proper divisors (130172435).

650862145 is a wasteful number, since it uses less digits than its factorization.

650862145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130172434.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 650862145 is about 25512.0000195986. Note that the first 4 decimals coincide. The cubic root of 650862145 is about 866.6219226571.

The spelling of 650862145 in words is "six hundred fifty million, eight hundred sixty-two thousand, one hundred forty-five".