163361401 has 12 divisors (see below), whose sum is σ = 191892288. Its totient is φ = 136231632.

The previous prime is 163361377. The next prime is 163361417. The reversal of 163361401 is 104163361.

It is a happy number.

It is not a de Polignac number, because 163361401 - 2⁹ = 163360889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163361491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1060 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (15991024).

Almost surely, 2^163361401 is an apocalyptic number.

It is an amenable number.

163361401 is a deficient number, since it is larger than the sum of its proper divisors (28530887).

163361401 is an equidigital number, since it uses as much as digits as its factorization.

163361401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128 (or 17091 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 163361401 is about 12781.2910537238. The cubic root of 163361401 is about 546.6589754933.

The spelling of 163361401 in words is "one hundred sixty-three million, three hundred sixty-one thousand, four hundred one".