169225212 has 24 divisors (see below), whose sum is σ = 425232976. Its totient is φ = 52069248.

The previous prime is 169225211. The next prime is 169225213. The reversal of 169225212 is 212522961.

It is an interprime number because it is at equal distance from previous prime (169225211) and next prime (169225213).

It is a self number, because there is not a number n which added to its sum of digits gives 169225212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169225211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542233 + ... + 542544.

Almost surely, 2^169225212 is an apocalyptic number.

169225212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

169225212 is an abundant number, since it is smaller than the sum of its proper divisors (256007764).

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

169225212 is a wasteful number, since it uses less digits than its factorization.

169225212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084797 (or 1084795 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 169225212 is about 13008.6591161426. The cubic root of 169225212 is about 553.1229633683.

The spelling of 169225212 in words is "one hundred sixty-nine million, two hundred twenty-five thousand, two hundred twelve".