134720887 has 16 divisors (see below), whose sum is σ = 162400000. Its totient is φ = 109175040.

The previous prime is 134720857. The next prime is 134720891. The reversal of 134720887 is 788027431.

It is a cyclic number.

It is not a de Polignac number, because 134720887 - 2¹⁵ = 134688119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134720827) 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, 107239 + ... + 108487.

It is an arithmetic number, because the mean of its divisors is an integer number (10150000).

Almost surely, 2^134720887 is an apocalyptic number.

134720887 is a deficient number, since it is larger than the sum of its proper divisors (27679113).

134720887 is a wasteful number, since it uses less digits than its factorization.

134720887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 134720887 is about 11606.9327128230. The cubic root of 134720887 is about 512.6390019153.

The spelling of 134720887 in words is "one hundred thirty-four million, seven hundred twenty thousand, eight hundred eighty-seven".