146161218 has 128 divisors (see below), whose sum is σ = 368640000. Its totient is φ = 38525760.

The previous prime is 146161217. The next prime is 146161219. The reversal of 146161218 is 812161641.

It is an interprime number because it is at equal distance from previous prime (146161217) and next prime (146161219).

It is not an unprimeable number, because it can be changed into a prime (146161217) 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 63 ways as a sum of consecutive naturals, for example, 1850103 + ... + 1850181.

It is an arithmetic number, because the mean of its divisors is an integer number (2880000).

Almost surely, 2^146161218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146161218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184320000).

146161218 is an abundant number, since it is smaller than the sum of its proper divisors (222478782).

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

146161218 is a wasteful number, since it uses less digits than its factorization.

146161218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 151 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 146161218 is about 12089.7153812652. The cubic root of 146161218 is about 526.7574878536.

The spelling of 146161218 in words is "one hundred forty-six million, one hundred sixty-one thousand, two hundred eighteen".