134805187 has 8 divisors (see below), whose sum is σ = 147801600. Its totient is φ = 121932360.

The previous prime is 134805169. The next prime is 134805191. The reversal of 134805187 is 781508431.

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

It is not a de Polignac number, because 134805187 - 2¹¹ = 134803139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134800187) 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, 28603 + ... + 32980.

It is an arithmetic number, because the mean of its divisors is an integer number (18475200).

Almost surely, 2^134805187 is an apocalyptic number.

134805187 is a deficient number, since it is larger than the sum of its proper divisors (12996413).

134805187 is a wasteful number, since it uses less digits than its factorization.

134805187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61793.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 134805187 is about 11610.5635952782. The cubic root of 134805187 is about 512.7459055492.

The spelling of 134805187 in words is "one hundred thirty-four million, eight hundred five thousand, one hundred eighty-seven".