135198955 has 4 divisors (see below), whose sum is σ = 162238752. Its totient is φ = 108159160.

The previous prime is 135198953. The next prime is 135198961. The reversal of 135198955 is 559891531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 135198955 - 2¹ = 135198953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135198953) 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, 13519891 + ... + 13519900.

It is an arithmetic number, because the mean of its divisors is an integer number (40559688).

Almost surely, 2^135198955 is an apocalyptic number.

135198955 is a deficient number, since it is larger than the sum of its proper divisors (27039797).

135198955 is an equidigital number, since it uses as much as digits as its factorization.

135198955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27039796.

The product of its digits is 243000, while the sum is 46.

The square root of 135198955 is about 11627.5085465460. The cubic root of 135198955 is about 513.2446664289.

The spelling of 135198955 in words is "one hundred thirty-five million, one hundred ninety-eight thousand, nine hundred fifty-five".