163122649 has 2 divisors, whose sum is σ = 163122650. Its totient is φ = 163122648.

The previous prime is 163122643. The next prime is 163122653. The reversal of 163122649 is 946221361.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154828249 + 8294400 = 12443^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 163122649 - 2²⁵ = 129568217 is a prime.

It is not a weakly prime, because it can be changed into another prime (163122643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81561324 + 81561325.

It is an arithmetic number, because the mean of its divisors is an integer number (81561325).

Almost surely, 2^163122649 is an apocalyptic number.

It is an amenable number.

163122649 is a deficient number, since it is larger than the sum of its proper divisors (1).

163122649 is an equidigital number, since it uses as much as digits as its factorization.

163122649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 163122649 is about 12771.9477371308. The cubic root of 163122649 is about 546.3925323853.

The spelling of 163122649 in words is "one hundred sixty-three million, one hundred twenty-two thousand, six hundred forty-nine".