64132247 has 2 divisors, whose sum is σ = 64132248. Its totient is φ = 64132246.

The previous prime is 64132231. The next prime is 64132291. The reversal of 64132247 is 74223146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64132247 - 2⁴ = 64132231 is a prime.

It is a super-2 number, since 2×64132247² = 8225890210538018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64132207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32066123 + 32066124.

It is an arithmetic number, because the mean of its divisors is an integer number (32066124).

Almost surely, 2^64132247 is an apocalyptic number.

64132247 is a deficient number, since it is larger than the sum of its proper divisors (1).

64132247 is an equidigital number, since it uses as much as digits as its factorization.

64132247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 64132247 is about 8008.2611720648. The cubic root of 64132247 is about 400.2753250302.

The spelling of 64132247 in words is "sixty-four million, one hundred thirty-two thousand, two hundred forty-seven".