650136545 has 8 divisors (see below), whose sum is σ = 788930280. Its totient is φ = 514264960.

The previous prime is 650136541. The next prime is 650136551. The reversal of 650136545 is 545631056.

It can be written as a sum of positive squares in 4 ways, for example, as 12271009 + 637865536 = 3503^2 + 25256^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 650136545 - 2² = 650136541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (650136541) 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, 730046 + ... + 730935.

It is an arithmetic number, because the mean of its divisors is an integer number (98616285).

Almost surely, 2^650136545 is an apocalyptic number.

It is an amenable number.

650136545 is a deficient number, since it is larger than the sum of its proper divisors (138793735).

650136545 is a wasteful number, since it uses less digits than its factorization.

650136545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461075.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 650136545 is about 25497.7752951115. The cubic root of 650136545 is about 866.2997578215.

The spelling of 650136545 in words is "six hundred fifty million, one hundred thirty-six thousand, five hundred forty-five".