64106213 has 2 divisors, whose sum is σ = 64106214. Its totient is φ = 64106212.

The previous prime is 64106183. The next prime is 64106227. The reversal of 64106213 is 31260146.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50438404 + 13667809 = 7102^2 + 3697^2 .

It is a cyclic number.

It is not a de Polignac number, because 64106213 - 2⁶ = 64106149 is a prime.

It is equal to p_3791012 and since 64106213 and 3791012 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64106243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32053106 + 32053107.

It is an arithmetic number, because the mean of its divisors is an integer number (32053107).

Almost surely, 2^64106213 is an apocalyptic number.

It is an amenable number.

64106213 is a deficient number, since it is larger than the sum of its proper divisors (1).

64106213 is an equidigital number, since it uses as much as digits as its factorization.

64106213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 64106213 is about 8006.6355605835. The cubic root of 64106213 is about 400.2211547872.

Adding to 64106213 its reverse (31260146), we get a palindrome (95366359).

The spelling of 64106213 in words is "sixty-four million, one hundred six thousand, two hundred thirteen".