161224322 has 8 divisors (see below), whose sum is σ = 276384576. Its totient is φ = 69096132.

The previous prime is 161224309. The next prime is 161224337. The reversal of 161224322 is 223422161.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5757998 + ... + 5758025.

It is an arithmetic number, because the mean of its divisors is an integer number (34548072).

Almost surely, 2^161224322 is an apocalyptic number.

161224322 is a deficient number, since it is larger than the sum of its proper divisors (115160254).

161224322 is a wasteful number, since it uses less digits than its factorization.

161224322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516032.

The product of its digits is 1152, while the sum is 23.

The square root of 161224322 is about 12697.4139886829. The cubic root of 161224322 is about 544.2647234687.

Adding to 161224322 its reverse (223422161), we get a palindrome (384646483).

The spelling of 161224322 in words is "one hundred sixty-one million, two hundred twenty-four thousand, three hundred twenty-two".