64354513 has 2 divisors, whose sum is σ = 64354514. Its totient is φ = 64354512.

The previous prime is 64354453. The next prime is 64354523. The reversal of 64354513 is 31545346.

64354513 = 5672² + 5673².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32182929 + 32171584 = 5673^2 + 5672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64354513 is a prime.

It is not a weakly prime, because it can be changed into another prime (64354523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32177256 + 32177257.

It is an arithmetic number, because the mean of its divisors is an integer number (32177257).

Almost surely, 2^64354513 is an apocalyptic number.

64354513 is the 5673-rd centered square number.

It is an amenable number.

64354513 is a deficient number, since it is larger than the sum of its proper divisors (1).

64354513 is an equidigital number, since it uses as much as digits as its factorization.

64354513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 64354513 is about 8022.1264637252. The cubic root of 64354513 is about 400.7372092217.

Adding to 64354513 its reverse (31545346), we get a palindrome (95899859).

The spelling of 64354513 in words is "sixty-four million, three hundred fifty-four thousand, five hundred thirteen".