135198219 has 8 divisors (see below), whose sum is σ = 194130832. Its totient is φ = 83198880.

The previous prime is 135198199. The next prime is 135198221. The reversal of 135198219 is 912891531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135198219 - 2⁵ = 135198187 is a prime.

It is a super-2 number, since 2×135198219² = 36557116841543922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3466621 = 135198219 / (1 + 3 + 5 + 1 + 9 + 8 + 2 + 1 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135191219) 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 7 ways as a sum of consecutive naturals, for example, 1733272 + ... + 1733349.

It is an arithmetic number, because the mean of its divisors is an integer number (24266354).

Almost surely, 2^135198219 is an apocalyptic number.

135198219 is a deficient number, since it is larger than the sum of its proper divisors (58932613).

135198219 is a wasteful number, since it uses less digits than its factorization.

135198219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466637.

The product of its digits is 19440, while the sum is 39.

The square root of 135198219 is about 11627.4768974185. The cubic root of 135198219 is about 513.2437350884.

The spelling of 135198219 in words is "one hundred thirty-five million, one hundred ninety-eight thousand, two hundred nineteen".