219135345 has 32 divisors (see below), whose sum is σ = 411917184. Its totient is φ = 98073600.

The previous prime is 219135331. The next prime is 219135347. The reversal of 219135345 is 543531912.

It is not a de Polignac number, because 219135345 - 2⁸ = 219135089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (219135347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48936 + ... + 53225.

It is an arithmetic number, because the mean of its divisors is an integer number (12872412).

Almost surely, 2^219135345 is an apocalyptic number.

It is an amenable number.

219135345 is a deficient number, since it is larger than the sum of its proper divisors (192781839).

219135345 is a wasteful number, since it uses less digits than its factorization.

219135345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102193.

The product of its digits is 16200, while the sum is 33.

The square root of 219135345 is about 14803.2207644147. The cubic root of 219135345 is about 602.8891627893.

The spelling of 219135345 in words is "two hundred nineteen million, one hundred thirty-five thousand, three hundred forty-five".