146163220 has 24 divisors (see below), whose sum is σ = 350792064. Its totient is φ = 50113056.

The previous prime is 146163211. The next prime is 146163221. The reversal of 146163220 is 22361641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146163221) 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 7 ways as a sum of consecutive naturals, for example, 521872 + ... + 522151.

It is an arithmetic number, because the mean of its divisors is an integer number (14616336).

Almost surely, 2^146163220 is an apocalyptic number.

146163220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146163220 is an abundant number, since it is smaller than the sum of its proper divisors (204628844).

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

146163220 is a wasteful number, since it uses less digits than its factorization.

146163220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044039 (or 1044037 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 146163220 is about 12089.7981786298. The cubic root of 146163220 is about 526.7598928775.

The spelling of 146163220 in words is "one hundred forty-six million, one hundred sixty-three thousand, two hundred twenty".