161303826 has 8 divisors (see below), whose sum is σ = 322607664. Its totient is φ = 53767940.

The previous prime is 161303809. The next prime is 161303833. The reversal of 161303826 is 628303161.

It is a sphenic number, since it is the product of 3 distinct primes.

161303826 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161303793 and 161303802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13441980 + ... + 13441991.

It is an arithmetic number, because the mean of its divisors is an integer number (40325958).

Almost surely, 2^161303826 is an apocalyptic number.

161303826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161303826 is a wasteful number, since it uses less digits than its factorization.

161303826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26883976.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 161303826 is about 12700.5443190440. The cubic root of 161303826 is about 544.3541725693.

Adding to 161303826 its reverse (628303161), we get a palindrome (789606987).

The spelling of 161303826 in words is "one hundred sixty-one million, three hundred three thousand, eight hundred twenty-six".