161044212 has 48 divisors (see below), whose sum is σ = 430801280. Its totient is φ = 45868032.

The previous prime is 161044193. The next prime is 161044237. The reversal of 161044212 is 212440161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25464 + ... + 31152.

Almost surely, 2^161044212 is an apocalyptic number.

161044212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161044212 is an abundant number, since it is smaller than the sum of its proper divisors (269757068).

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

161044212 is a wasteful number, since it uses less digits than its factorization.

161044212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040 (or 6038 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 161044212 is about 12690.3196177244. The cubic root of 161044212 is about 544.0619748093.

Adding to 161044212 its reverse (212440161), we get a palindrome (373484373).

The spelling of 161044212 in words is "one hundred sixty-one million, forty-four thousand, two hundred twelve".