161524212 has 12 divisors (see below), whose sum is σ = 376889856. Its totient is φ = 53841400.

The previous prime is 161524201. The next prime is 161524217. The reversal of 161524212 is 212425161.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161524217) by changing a digit.

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, 6730164 + ... + 6730187.

It is an arithmetic number, because the mean of its divisors is an integer number (31407488).

Almost surely, 2^161524212 is an apocalyptic number.

161524212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161524212 is an abundant number, since it is smaller than the sum of its proper divisors (215365644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161524212 is a wasteful number, since it uses less digits than its factorization.

161524212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13460358 (or 13460356 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 161524212 is about 12709.2175998367. The cubic root of 161524212 is about 544.6019729398.

Adding to 161524212 its reverse (212425161), we get a palindrome (373949373).

The spelling of 161524212 in words is "one hundred sixty-one million, five hundred twenty-four thousand, two hundred twelve".