163210979 has 2 divisors, whose sum is σ = 163210980. Its totient is φ = 163210978.

The previous prime is 163210973. The next prime is 163210997. The reversal of 163210979 is 979012361.

It is a happy number.

Together with next prime (163210997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (979012361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163210979 is a prime.

It is a super-2 number, since 2×163210979² = 53275647332276882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163210973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81605489 + 81605490.

It is an arithmetic number, because the mean of its divisors is an integer number (81605490).

Almost surely, 2^163210979 is an apocalyptic number.

163210979 is a deficient number, since it is larger than the sum of its proper divisors (1).

163210979 is an equidigital number, since it uses as much as digits as its factorization.

163210979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 163210979 is about 12775.4052381911. The cubic root of 163210979 is about 546.4911374205.

The spelling of 163210979 in words is "one hundred sixty-three million, two hundred ten thousand, nine hundred seventy-nine".