219557133 has 12 divisors (see below), whose sum is σ = 320279388. Its totient is φ = 144921600.

The previous prime is 219557131. The next prime is 219557137. The reversal of 219557133 is 331755912.

It can be written as a sum of positive squares in 2 ways, for example, as 90212004 + 129345129 = 9498^2 + 11373^2 .

It is not a de Polignac number, because 219557133 - 2¹ = 219557131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219557131) 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 11 ways as a sum of consecutive naturals, for example, 119860 + ... + 121677.

It is an arithmetic number, because the mean of its divisors is an integer number (26689949).

Almost surely, 2^219557133 is an apocalyptic number.

It is an amenable number.

219557133 is a deficient number, since it is larger than the sum of its proper divisors (100722255).

219557133 is a wasteful number, since it uses less digits than its factorization.

219557133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241644 (or 241641 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 219557133 is about 14817.4604099353. The cubic root of 219557133 is about 603.2757251617.

The spelling of 219557133 in words is "two hundred nineteen million, five hundred fifty-seven thousand, one hundred thirty-three".