134387187 has 16 divisors (see below), whose sum is σ = 195888000. Its totient is φ = 81273600.

The previous prime is 134387173. The next prime is 134387203. The reversal of 134387187 is 781783431.

It is a happy number.

It is not a de Polignac number, because 134387187 - 2¹⁰ = 134386163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134387107) 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, 12387 + ... + 20547.

It is an arithmetic number, because the mean of its divisors is an integer number (12243000).

Almost surely, 2^134387187 is an apocalyptic number.

134387187 is a deficient number, since it is larger than the sum of its proper divisors (61500813).

134387187 is a wasteful number, since it uses less digits than its factorization.

134387187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674.

The product of its digits is 112896, while the sum is 42.

The square root of 134387187 is about 11592.5487706544. The cubic root of 134387187 is about 512.2153876396.

The spelling of 134387187 in words is "one hundred thirty-four million, three hundred eighty-seven thousand, one hundred eighty-seven".