219508136 has 32 divisors (see below), whose sum is σ = 434937600. Its totient is φ = 103646400.

The previous prime is 219508127. The next prime is 219508151. The reversal of 219508136 is 631805912.

219508136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 219508096 and 219508105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6986 + ... + 22086.

It is an arithmetic number, because the mean of its divisors is an integer number (13591800).

Almost surely, 2^219508136 is an apocalyptic number.

It is an amenable number.

219508136 is a deficient number, since it is larger than the sum of its proper divisors (215429464).

219508136 is a wasteful number, since it uses less digits than its factorization.

219508136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15209 (or 15205 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 219508136 is about 14815.8069641852. The cubic root of 219508136 is about 603.2308455756.

The spelling of 219508136 in words is "two hundred nineteen million, five hundred eight thousand, one hundred thirty-six".