64262189 has 2 divisors, whose sum is σ = 64262190. Its totient is φ = 64262188.

The previous prime is 64262147. The next prime is 64262197. The reversal of 64262189 is 98126246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41860900 + 22401289 = 6470^2 + 4733^2 .

It is a cyclic number.

It is not a de Polignac number, because 64262189 - 2²⁰ = 63213613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64262089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32131094 + 32131095.

It is an arithmetic number, because the mean of its divisors is an integer number (32131095).

Almost surely, 2^64262189 is an apocalyptic number.

It is an amenable number.

64262189 is a deficient number, since it is larger than the sum of its proper divisors (1).

64262189 is an equidigital number, since it uses as much as digits as its factorization.

64262189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 64262189 is about 8016.3700638132. The cubic root of 64262189 is about 400.5454828663.

The spelling of 64262189 in words is "sixty-four million, two hundred sixty-two thousand, one hundred eighty-nine".