64530541 has 2 divisors, whose sum is σ = 64530542. Its totient is φ = 64530540.

The previous prime is 64530533. The next prime is 64530629. The reversal of 64530541 is 14503546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40373316 + 24157225 = 6354^2 + 4915^2 .

It is a cyclic number.

It is not a de Polignac number, because 64530541 - 2³ = 64530533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64630541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32265270 + 32265271.

It is an arithmetic number, because the mean of its divisors is an integer number (32265271).

Almost surely, 2^64530541 is an apocalyptic number.

It is an amenable number.

64530541 is a deficient number, since it is larger than the sum of its proper divisors (1).

64530541 is an equidigital number, since it uses as much as digits as its factorization.

64530541 is an evil number, because the sum of its binary digits is even.

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

The square root of 64530541 is about 8033.0903766857. The cubic root of 64530541 is about 401.1022535528.

The spelling of 64530541 in words is "sixty-four million, five hundred thirty thousand, five hundred forty-one".