135942745191 has 8 divisors (see below), whose sum is σ = 197734902144. Its totient is φ = 82389542520.

The previous prime is 135942745187. The next prime is 135942745193. The reversal of 135942745191 is 191547249531.

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

It is not a de Polignac number, because 135942745191 - 2² = 135942745187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135942745193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059738531 + ... + 2059738596.

It is an arithmetic number, because the mean of its divisors is an integer number (24716862768).

Almost surely, 2^135942745191 is an apocalyptic number.

135942745191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135942745191 is a deficient number, since it is larger than the sum of its proper divisors (61792156953).

135942745191 is a wasteful number, since it uses less digits than its factorization.

135942745191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119477141.

The product of its digits is 1360800, while the sum is 51.

The spelling of 135942745191 in words is "one hundred thirty-five billion, nine hundred forty-two million, seven hundred forty-five thousand, one hundred ninety-one".