135198800329 has 4 divisors (see below), whose sum is σ = 135222773140. Its totient is φ = 135174827520.

The previous prime is 135198800267. The next prime is 135198800357. The reversal of 135198800329 is 923008891531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 923008891531 = 131 ⋅7045869401.

It can be written as a sum of positive squares in 2 ways, for example, as 78232090000 + 56966710329 = 279700^2 + 238677^2 .

It is a cyclic number.

It is not a de Polignac number, because 135198800329 - 2⁷ = 135198800201 is a prime.

It is a super-2 number, since 2×135198800329² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135198800029) 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, 11977944 + ... + 11989225.

It is an arithmetic number, because the mean of its divisors is an integer number (33805693285).

Almost surely, 2^135198800329 is an apocalyptic number.

It is an amenable number.

135198800329 is a deficient number, since it is larger than the sum of its proper divisors (23972811).

135198800329 is an equidigital number, since it uses as much as digits as its factorization.

135198800329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23972810.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 135198800329 in words is "one hundred thirty-five billion, one hundred ninety-eight million, eight hundred thousand, three hundred twenty-nine".