134855971 has 4 divisors (see below), whose sum is σ = 135163600. Its totient is φ = 134548344.

The previous prime is 134855947. The next prime is 134856013. The reversal of 134855971 is 179558431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179558431 = 13 ⋅13812187.

It is a cyclic number.

It is not a de Polignac number, because 134855971 - 2⁷ = 134855843 is a prime.

It is a super-2 number, since 2×134855971² = 36372265828705682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134855911) 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, 153156 + ... + 154033.

It is an arithmetic number, because the mean of its divisors is an integer number (33790900).

Almost surely, 2^134855971 is an apocalyptic number.

134855971 is a deficient number, since it is larger than the sum of its proper divisors (307629).

134855971 is an equidigital number, since it uses as much as digits as its factorization.

134855971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307628.

The product of its digits is 151200, while the sum is 43.

The square root of 134855971 is about 11612.7503632860. The cubic root of 134855971 is about 512.8102849189.

The spelling of 134855971 in words is "one hundred thirty-four million, eight hundred fifty-five thousand, nine hundred seventy-one".