650145541 has 4 divisors (see below), whose sum is σ = 662412492. Its totient is φ = 637878592.

The previous prime is 650145539. The next prime is 650145581. The reversal of 650145541 is 145541056.

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 328660641 + 321484900 = 18129^2 + 17930^2 .

It is a cyclic number.

It is not a de Polignac number, because 650145541 - 2¹ = 650145539 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 (650145521) 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 3 ways as a sum of consecutive naturals, for example, 6133396 + ... + 6133501.

It is an arithmetic number, because the mean of its divisors is an integer number (165603123).

Almost surely, 2^650145541 is an apocalyptic number.

It is an amenable number.

650145541 is a deficient number, since it is larger than the sum of its proper divisors (12266951).

650145541 is a wasteful number, since it uses less digits than its factorization.

650145541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266950.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 650145541 is about 25497.9517020485. The cubic root of 650145541 is about 866.3037534933.

Adding to 650145541 its reverse (145541056), we get a palindrome (795686597).

The spelling of 650145541 in words is "six hundred fifty million, one hundred forty-five thousand, five hundred forty-one".