19960117 has 2 divisors, whose sum is σ = 19960118. Its totient is φ = 19960116.

The previous prime is 19960093. The next prime is 19960123. The reversal of 19960117 is 71106991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18541636 + 1418481 = 4306^2 + 1191^2 .

It is an emirp because it is prime and its reverse (71106991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19960117 - 2¹¹ = 19958069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19960147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9980058 + 9980059.

It is an arithmetic number, because the mean of its divisors is an integer number (9980059).

Almost surely, 2^19960117 is an apocalyptic number.

It is an amenable number.

19960117 is a deficient number, since it is larger than the sum of its proper divisors (1).

19960117 is an equidigital number, since it uses as much as digits as its factorization.

19960117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 19960117 is about 4467.6746748169. The cubic root of 19960117 is about 271.2612097274.

The spelling of 19960117 in words is "nineteen million, nine hundred sixty thousand, one hundred seventeen".