64630541 has 2 divisors, whose sum is σ = 64630542. Its totient is φ = 64630540.

The previous prime is 64630507. The next prime is 64630603. The reversal of 64630541 is 14503646.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51337225 + 13293316 = 7165^2 + 3646^2 .

It is a cyclic number.

It is not a de Polignac number, because 64630541 - 2¹⁴ = 64614157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64632541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32315270 + 32315271.

It is an arithmetic number, because the mean of its divisors is an integer number (32315271).

Almost surely, 2^64630541 is an apocalyptic number.

It is an amenable number.

64630541 is a deficient number, since it is larger than the sum of its proper divisors (1).

64630541 is an equidigital number, since it uses as much as digits as its factorization.

64630541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 64630541 is about 8039.3122218259. The cubic root of 64630541 is about 401.3093365017.

The spelling of 64630541 in words is "sixty-four million, six hundred thirty thousand, five hundred forty-one".