219650148 has 18 divisors (see below), whose sum is σ = 555226854. Its totient is φ = 73216704.

The previous prime is 219650141. The next prime is 219650173. The reversal of 219650148 is 841056912.

219650148 is a `hidden beast` number, since 21 + 96 + 501 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 198471744 + 21178404 = 14088^2 + 4602^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6101393 = 219650148 / (2 + 1 + 9 + 6 + 5 + 0 + 1 + 4 + 8).

It is not an unprimeable number, because it can be changed into a prime (219650141) 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 5 ways as a sum of consecutive naturals, for example, 3050661 + ... + 3050732.

Almost surely, 2^219650148 is an apocalyptic number.

It is an amenable number.

219650148 is an abundant number, since it is smaller than the sum of its proper divisors (335576706).

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

219650148 is a wasteful number, since it uses less digits than its factorization.

219650148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101403 (or 6101398 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 219650148 is about 14820.5987733290. The cubic root of 219650148 is about 603.3609053735.

The spelling of 219650148 in words is "two hundred nineteen million, six hundred fifty thousand, one hundred forty-eight".