134047288181 has 4 divisors (see below), whose sum is σ = 134304577164. Its totient is φ = 133789999200.

The previous prime is 134047288171. The next prime is 134047288259. The reversal of 134047288181 is 181882740431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 81319647556 + 52727640625 = 285166^2 + 229625^2 .

It is a cyclic number.

It is not a de Polignac number, because 134047288181 - 2⁶ = 134047288117 is a prime.

It is a super-2 number, since 2×134047288181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134047288171) 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, 128643710 + ... + 128644751.

It is an arithmetic number, because the mean of its divisors is an integer number (33576144291).

Almost surely, 2^134047288181 is an apocalyptic number.

It is an amenable number.

134047288181 is a deficient number, since it is larger than the sum of its proper divisors (257288983).

134047288181 is an equidigital number, since it uses as much as digits as its factorization.

134047288181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257288982.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 134047288181 in words is "one hundred thirty-four billion, forty-seven million, two hundred eighty-eight thousand, one hundred eighty-one".