163707613 has 2 divisors, whose sum is σ = 163707614. Its totient is φ = 163707612.

The previous prime is 163707589. The next prime is 163707631. The reversal of 163707613 is 316707361.

It is a happy number.

Together with next prime (163707631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144889369 + 18818244 = 12037^2 + 4338^2 .

It is a cyclic number.

It is not a de Polignac number, because 163707613 - 2¹⁷ = 163576541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163707673) 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, 81853806 + 81853807.

It is an arithmetic number, because the mean of its divisors is an integer number (81853807).

Almost surely, 2^163707613 is an apocalyptic number.

It is an amenable number.

163707613 is a deficient number, since it is larger than the sum of its proper divisors (1).

163707613 is an equidigital number, since it uses as much as digits as its factorization.

163707613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 163707613 is about 12794.8275877403. The cubic root of 163707613 is about 547.0448813309.

The spelling of 163707613 in words is "one hundred sixty-three million, seven hundred seven thousand, six hundred thirteen".