169956113 has 2 divisors, whose sum is σ = 169956114. Its totient is φ = 169956112.

The previous prime is 169956103. The next prime is 169956151. The reversal of 169956113 is 311659961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 82664464 = 9343^2 + 9092^2 .

169956113 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 169956113 - 2¹⁴ = 169939729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (169956103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84978056 + 84978057.

It is an arithmetic number, because the mean of its divisors is an integer number (84978057).

Almost surely, 2^169956113 is an apocalyptic number.

It is an amenable number.

169956113 is a deficient number, since it is larger than the sum of its proper divisors (1).

169956113 is an equidigital number, since it uses as much as digits as its factorization.

169956113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 41.

The square root of 169956113 is about 13036.7217121483. The cubic root of 169956113 is about 553.9181511841.

The spelling of 169956113 in words is "one hundred sixty-nine million, nine hundred fifty-six thousand, one hundred thirteen".