163516117 has 2 divisors, whose sum is σ = 163516118. Its totient is φ = 163516116.

The previous prime is 163516099. The next prime is 163516121. The reversal of 163516117 is 711615361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146918641 + 16597476 = 12121^2 + 4074^2 .

It is a cyclic number.

It is not a de Polignac number, because 163516117 - 2¹⁵ = 163483349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163516127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81758058 + 81758059.

It is an arithmetic number, because the mean of its divisors is an integer number (81758059).

Almost surely, 2^163516117 is an apocalyptic number.

It is an amenable number.

163516117 is a deficient number, since it is larger than the sum of its proper divisors (1).

163516117 is an equidigital number, since it uses as much as digits as its factorization.

163516117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 31.

The square root of 163516117 is about 12787.3420615857. The cubic root of 163516117 is about 546.8314972829.

The spelling of 163516117 in words is "one hundred sixty-three million, five hundred sixteen thousand, one hundred seventeen".