163089613 has 2 divisors, whose sum is σ = 163089614. Its totient is φ = 163089612.

The previous prime is 163089607. The next prime is 163089631. The reversal of 163089613 is 316980361.

163089613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (163089631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132641289 + 30448324 = 11517^2 + 5518^2 .

It is a cyclic number.

It is not a de Polignac number, because 163089613 - 2²⁵ = 129535181 is a prime.

It is equal to p_9137863 and since 163089613 and 9137863 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163086613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81544806 + 81544807.

It is an arithmetic number, because the mean of its divisors is an integer number (81544807).

Almost surely, 2^163089613 is an apocalyptic number.

It is an amenable number.

163089613 is a deficient number, since it is larger than the sum of its proper divisors (1).

163089613 is an equidigital number, since it uses as much as digits as its factorization.

163089613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 163089613 is about 12770.6543685122. The cubic root of 163089613 is about 546.3556443086.

It can be divided in two parts, 16308 and 9613, that added together give a square (25921 = 161²).

The spelling of 163089613 in words is "one hundred sixty-three million, eighty-nine thousand, six hundred thirteen".