146931218 has 32 divisors (see below), whose sum is σ = 272323200. Its totient is φ = 58040064.

The previous prime is 146931217. The next prime is 146931229. The reversal of 146931218 is 812139641.

It is not an unprimeable number, because it can be changed into a prime (146931217) 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 15 ways as a sum of consecutive naturals, for example, 2378 + ... + 17306.

It is an arithmetic number, because the mean of its divisors is an integer number (8510100).

Almost surely, 2^146931218 is an apocalyptic number.

146931218 is a deficient number, since it is larger than the sum of its proper divisors (125391982).

146931218 is a wasteful number, since it uses less digits than its factorization.

146931218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14994.

The product of its digits is 10368, while the sum is 35.

The square root of 146931218 is about 12121.5187992264. The cubic root of 146931218 is about 527.6808816425.

The spelling of 146931218 in words is "one hundred forty-six million, nine hundred thirty-one thousand, two hundred eighteen".