161201704 has 16 divisors (see below), whose sum is σ = 303124500. Its totient is φ = 80368512.

The previous prime is 161201699. The next prime is 161201707. The reversal of 161201704 is 407102161.

161201704 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159516900 + 1684804 = 12630^2 + 1298^2 .

It is not an unprimeable number, because it can be changed into a prime (161201707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26077 + ... + 31660.

Almost surely, 2^161201704 is an apocalyptic number.

It is an amenable number.

161201704 is a deficient number, since it is larger than the sum of its proper divisors (141922796).

161201704 is a wasteful number, since it uses less digits than its factorization.

161201704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58092 (or 58088 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 161201704 is about 12696.5233036450. The cubic root of 161201704 is about 544.2392708259.

Adding to 161201704 its reverse (407102161), we get a palindrome (568303865).

The spelling of 161201704 in words is "one hundred sixty-one million, two hundred one thousand, seven hundred four".