163961159 has 2 divisors, whose sum is σ = 163961160. Its totient is φ = 163961158.

The previous prime is 163961143. The next prime is 163961167. The reversal of 163961159 is 951169361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163961159 - 2⁴ = 163961143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163961359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81980579 + 81980580.

It is an arithmetic number, because the mean of its divisors is an integer number (81980580).

Almost surely, 2^163961159 is an apocalyptic number.

163961159 is a deficient number, since it is larger than the sum of its proper divisors (1).

163961159 is an equidigital number, since it uses as much as digits as its factorization.

163961159 is an odious number, because the sum of its binary digits is odd.

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

The square root of 163961159 is about 12804.7318987943. The cubic root of 163961159 is about 547.3271518476.

The spelling of 163961159 in words is "one hundred sixty-three million, nine hundred sixty-one thousand, one hundred fifty-nine".