134955971 has 2 divisors, whose sum is σ = 134955972. Its totient is φ = 134955970.

The previous prime is 134955959. The next prime is 134955991. The reversal of 134955971 is 179559431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134955971 - 2⁶ = 134955907 is a prime.

It is a super-2 number, since 2×134955971² = 36426228217105682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134955991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67477985 + 67477986.

It is an arithmetic number, because the mean of its divisors is an integer number (67477986).

Almost surely, 2^134955971 is an apocalyptic number.

134955971 is a deficient number, since it is larger than the sum of its proper divisors (1).

134955971 is an equidigital number, since it uses as much as digits as its factorization.

134955971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170100, while the sum is 44.

The square root of 134955971 is about 11617.0551776257. The cubic root of 134955971 is about 512.9370086568.

The spelling of 134955971 in words is "one hundred thirty-four million, nine hundred fifty-five thousand, nine hundred seventy-one".