161241122 has 32 divisors (see below), whose sum is σ = 281698560. Its totient is φ = 67795200.

The previous prime is 161241121. The next prime is 161241173. The reversal of 161241122 is 221142161.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 161241094 and 161241103.

It is not an unprimeable number, because it can be changed into a prime (161241121) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 187718 + ... + 188574.

It is an arithmetic number, because the mean of its divisors is an integer number (8803080).

Almost surely, 2^161241122 is an apocalyptic number.

161241122 is a deficient number, since it is larger than the sum of its proper divisors (120457438).

161241122 is a wasteful number, since it uses less digits than its factorization.

161241122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106.

The product of its digits is 192, while the sum is 20.

The square root of 161241122 is about 12698.0755234799. The cubic root of 161241122 is about 544.2836274191.

Adding to 161241122 its reverse (221142161), we get a palindrome (382383283).

The spelling of 161241122 in words is "one hundred sixty-one million, two hundred forty-one thousand, one hundred twenty-two".