148821218 has 32 divisors (see below), whose sum is σ = 275399040. Its totient is φ = 58734720.

The previous prime is 148821217. The next prime is 148821229. The reversal of 148821218 is 812128841.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (148821217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111998 + ... + 113318.

It is an arithmetic number, because the mean of its divisors is an integer number (8606220).

Almost surely, 2^148821218 is an apocalyptic number.

148821218 is a deficient number, since it is larger than the sum of its proper divisors (126577822).

148821218 is a wasteful number, since it uses less digits than its factorization.

148821218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962.

The product of its digits is 8192, while the sum is 35.

The square root of 148821218 is about 12199.2302216164. The cubic root of 148821218 is about 529.9337973557.

The spelling of 148821218 in words is "one hundred forty-eight million, eight hundred twenty-one thousand, two hundred eighteen".