134549868071 has 4 divisors (see below), whose sum is σ = 134602780512. Its totient is φ = 134496955632.

The previous prime is 134549868043. The next prime is 134549868107. The reversal of 134549868071 is 170868945431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170868945431 = 3347 ⋅51051373.

It is a cyclic number.

It is not a de Polignac number, because 134549868071 - 2¹⁰ = 134549867047 is a prime.

It is a super-2 number, since 2×134549868071² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134549867998 and 134549868016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134549862071) 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, 26452406 + ... + 26457491.

It is an arithmetic number, because the mean of its divisors is an integer number (33650695128).

Almost surely, 2^134549868071 is an apocalyptic number.

134549868071 is a deficient number, since it is larger than the sum of its proper divisors (52912441).

134549868071 is an equidigital number, since it uses as much as digits as its factorization.

134549868071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52912440.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 134549868071 in words is "one hundred thirty-four billion, five hundred forty-nine million, eight hundred sixty-eight thousand, seventy-one".