65215147 has 2 divisors, whose sum is σ = 65215148. Its totient is φ = 65215146.

The previous prime is 65215141. The next prime is 65215153. The reversal of 65215147 is 74151256.

It is a balanced prime because it is at equal distance from previous prime (65215141) and next prime (65215153).

It is a cyclic number.

It is not a de Polignac number, because 65215147 - 2⁷ = 65215019 is a prime.

It is not a weakly prime, because it can be changed into another prime (65215141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32607573 + 32607574.

It is an arithmetic number, because the mean of its divisors is an integer number (32607574).

Almost surely, 2^65215147 is an apocalyptic number.

65215147 is a deficient number, since it is larger than the sum of its proper divisors (1).

65215147 is an equidigital number, since it uses as much as digits as its factorization.

65215147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 65215147 is about 8075.5895760000. The cubic root of 65215147 is about 402.5157011994.

The spelling of 65215147 in words is "sixty-five million, two hundred fifteen thousand, one hundred forty-seven".