219550148 has 12 divisors (see below), whose sum is σ = 386434860. Its totient is φ = 109140192.

The previous prime is 219550147. The next prime is 219550169. The reversal of 219550148 is 841055912.

It can be written as a sum of positive squares in 2 ways, for example, as 176411524 + 43138624 = 13282^2 + 6568^2 .

It is not an unprimeable number, because it can be changed into a prime (219550141) 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 3 ways as a sum of consecutive naturals, for example, 157943 + ... + 159326.

It is an arithmetic number, because the mean of its divisors is an integer number (32202905).

Almost surely, 2^219550148 is an apocalyptic number.

It is an amenable number.

219550148 is a deficient number, since it is larger than the sum of its proper divisors (166884712).

219550148 is a wasteful number, since it uses less digits than its factorization.

219550148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317446 (or 317444 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 219550148 is about 14817.2247064017. The cubic root of 219550148 is about 603.2693275473.

The spelling of 219550148 in words is "two hundred nineteen million, five hundred fifty thousand, one hundred forty-eight".