134783144787 has 8 divisors (see below), whose sum is σ = 179721204160. Its totient is φ = 89850257640.

The previous prime is 134783144761. The next prime is 134783144791. The reversal of 134783144787 is 787441387431.

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

It is not a de Polignac number, because 134783144787 - 2⁷ = 134783144659 is a prime.

It is a super-2 number, since 2×134783144787² (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 (134783144747) 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, 1231837 + ... + 1336782.

It is an arithmetic number, because the mean of its divisors is an integer number (22465150520).

Almost surely, 2^134783144787 is an apocalyptic number.

134783144787 is a deficient number, since it is larger than the sum of its proper divisors (44938059373).

134783144787 is a wasteful number, since it uses less digits than its factorization.

134783144787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586113.

The product of its digits is 12644352, while the sum is 57.

The spelling of 134783144787 in words is "one hundred thirty-four billion, seven hundred eighty-three million, one hundred forty-four thousand, seven hundred eighty-seven".