161303122 has 8 divisors (see below), whose sum is σ = 254689200. Its totient is φ = 76406724.

The previous prime is 161303119. The next prime is 161303147. The reversal of 161303122 is 221303161.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 161303122.

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, 2122372 + ... + 2122447.

It is an arithmetic number, because the mean of its divisors is an integer number (31836150).

Almost surely, 2^161303122 is an apocalyptic number.

161303122 is a deficient number, since it is larger than the sum of its proper divisors (93386078).

161303122 is a wasteful number, since it uses less digits than its factorization.

161303122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244840.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 161303122 is about 12700.5166036662. The cubic root of 161303122 is about 544.3533806354.

Adding to 161303122 its reverse (221303161), we get a palindrome (382606283).

The spelling of 161303122 in words is "one hundred sixty-one million, three hundred three thousand, one hundred twenty-two".