135191230199 has 4 divisors (see below), whose sum is σ = 135194118480. Its totient is φ = 135188341920.

The previous prime is 135191230169. The next prime is 135191230217. The reversal of 135191230199 is 991032191531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991032191531 = 74567 ⋅13290493.

It is a cyclic number.

It is not a de Polignac number, because 135191230199 - 2¹⁶ = 135191164663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135191230129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372754 + ... + 1467935.

It is an arithmetic number, because the mean of its divisors is an integer number (33798529620).

Almost surely, 2^135191230199 is an apocalyptic number.

135191230199 is a deficient number, since it is larger than the sum of its proper divisors (2888281).

135191230199 is an equidigital number, since it uses as much as digits as its factorization.

135191230199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888280.

The product of its (nonzero) digits is 65610, while the sum is 44.

The spelling of 135191230199 in words is "one hundred thirty-five billion, one hundred ninety-one million, two hundred thirty thousand, one hundred ninety-nine".