161424512 has 24 divisors (see below), whose sum is σ = 321874515. Its totient is φ = 80640384.

The previous prime is 161424509. The next prime is 161424517. The reversal of 161424512 is 215424161.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 80712256 + 80712256 = 8984^2 + 8984^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8984.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161424517) 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 2 ways as a sum of consecutive naturals, for example, 143183 + ... + 144305.

Almost surely, 2^161424512 is an apocalyptic number.

It is an amenable number.

161424512 is a deficient number, since it is larger than the sum of its proper divisors (160450003).

161424512 is an frugal number, since it uses more digits than its factorization.

161424512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260 (or 1125 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 161424512 is about 12705.2946443599. The cubic root of 161424512 is about 544.4898989431.

Adding to 161424512 its reverse (215424161), we get a palindrome (376848673).

The spelling of 161424512 in words is "one hundred sixty-one million, four hundred twenty-four thousand, five hundred twelve".