650148005 has 8 divisors (see below), whose sum is σ = 840191352. Its totient is φ = 480109248.

The previous prime is 650147999. The next prime is 650148007. The reversal of 650148005 is 500841056.

It is a happy number.

It is a Cunningham number, because it is equal to 25498²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 650148004 = 1^2 + 25498^2 .

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 650148005 - 2⁴ = 650147989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650148007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5001074 + ... + 5001203.

It is an arithmetic number, because the mean of its divisors is an integer number (105023919).

Almost surely, 2^650148005 is an apocalyptic number.

650148005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

650148005 is a deficient number, since it is larger than the sum of its proper divisors (190043347).

650148005 is a wasteful number, since it uses less digits than its factorization.

650148005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002295.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 650148005 is about 25498.0000196094. Note that the first 4 decimals coincide. The cubic root of 650148005 is about 866.3048478994.

The spelling of 650148005 in words is "six hundred fifty million, one hundred forty-eight thousand, five".