163161629 has 2 divisors, whose sum is σ = 163161630. Its totient is φ = 163161628.

The previous prime is 163161617. The next prime is 163161637. The reversal of 163161629 is 926161361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163149529 + 12100 = 12773^2 + 110^2 .

It is an emirp because it is prime and its reverse (926161361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163161629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163161329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81580814 + 81580815.

It is an arithmetic number, because the mean of its divisors is an integer number (81580815).

Almost surely, 2^163161629 is an apocalyptic number.

It is an amenable number.

163161629 is a deficient number, since it is larger than the sum of its proper divisors (1).

163161629 is an equidigital number, since it uses as much as digits as its factorization.

163161629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The square root of 163161629 is about 12773.4736465849. The cubic root of 163161629 is about 546.4360511420.

The spelling of 163161629 in words is "one hundred sixty-three million, one hundred sixty-one thousand, six hundred twenty-nine".