64541530 has 16 divisors (see below), whose sum is σ = 120181320. Its totient is φ = 24926272.

The previous prime is 64541509. The next prime is 64541549. The reversal of 64541530 is 3514546.

It can be written as a sum of positive squares in 4 ways, for example, as 29931841 + 34609689 = 5471^2 + 5883^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110989 + ... + 111568.

Almost surely, 2^64541530 is an apocalyptic number.

64541530 is a deficient number, since it is larger than the sum of its proper divisors (55639790).

64541530 is a wasteful number, since it uses less digits than its factorization.

64541530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222593.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 64541530 is about 8033.7743309107. The cubic root of 64541530 is about 401.1250203565.

The spelling of 64541530 in words is "sixty-four million, five hundred forty-one thousand, five hundred thirty".