65120117 has 2 divisors, whose sum is σ = 65120118. Its totient is φ = 65120116.

The previous prime is 65120089. The next prime is 65120131. The reversal of 65120117 is 71102156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50112241 + 15007876 = 7079^2 + 3874^2 .

It is a cyclic number.

It is not a de Polignac number, because 65120117 - 2⁸ = 65119861 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 65120092 and 65120101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65120137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32560058 + 32560059.

It is an arithmetic number, because the mean of its divisors is an integer number (32560059).

Almost surely, 2^65120117 is an apocalyptic number.

It is an amenable number.

65120117 is a deficient number, since it is larger than the sum of its proper divisors (1).

65120117 is an equidigital number, since it uses as much as digits as its factorization.

65120117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 65120117 is about 8069.7036500729. The cubic root of 65120117 is about 402.3200939751.

The spelling of 65120117 in words is "sixty-five million, one hundred twenty thousand, one hundred seventeen".