146222132 has 24 divisors (see below), whose sum is σ = 305160576. Its totient is φ = 59941728.

The previous prime is 146222129. The next prime is 146222137. The reversal of 146222132 is 231222641.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 146222098 and 146222107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146222137) 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 7 ways as a sum of consecutive naturals, for example, 112883 + ... + 114170.

It is an arithmetic number, because the mean of its divisors is an integer number (12715024).

Almost surely, 2^146222132 is an apocalyptic number.

It is an amenable number.

146222132 is an abundant number, since it is smaller than the sum of its proper divisors (158938444).

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

146222132 is a wasteful number, since it uses less digits than its factorization.

146222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227087 (or 227085 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 146222132 is about 12092.2343675600. The cubic root of 146222132 is about 526.8306546612.

Adding to 146222132 its reverse (231222641), we get a palindrome (377444773).

The spelling of 146222132 in words is "one hundred forty-six million, two hundred twenty-two thousand, one hundred thirty-two".