134106891 has 16 divisors (see below), whose sum is σ = 182645280. Its totient is φ = 87507200.

The previous prime is 134106887. The next prime is 134106893. The reversal of 134106891 is 198601431.

It is a cyclic number.

It is not a de Polignac number, because 134106891 - 2² = 134106887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134106893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24481 + ... + 29453.

It is an arithmetic number, because the mean of its divisors is an integer number (11415330).

Almost surely, 2^134106891 is an apocalyptic number.

134106891 is a deficient number, since it is larger than the sum of its proper divisors (48538389).

134106891 is a wasteful number, since it uses less digits than its factorization.

134106891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 134106891 is about 11580.4529704153. The cubic root of 134106891 is about 511.8590246535.

It can be divided in two parts, 13410 and 6891, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 134106891 in words is "one hundred thirty-four million, one hundred six thousand, eight hundred ninety-one".