136887 has 8 divisors (see below), whose sum is σ = 184704. Its totient is φ = 90168.

The previous prime is 136883. The next prime is 136889. The reversal of 136887 is 788631.

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

It is not a de Polignac number, because 136887 - 2² = 136883 is a prime.

136887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136883) 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, 88 + ... + 530.

It is an arithmetic number, because the mean of its divisors is an integer number (23088).

2¹³⁶⁸⁸⁷ is an apocalyptic number.

136887 is a deficient number, since it is larger than the sum of its proper divisors (47817).

136887 is a wasteful number, since it uses less digits than its factorization.

136887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its digits is 8064, while the sum is 33.

The square root of 136887 is about 369.9824320154. The cubic root of 136887 is about 51.5371899658.

It can be divided in two parts, 13688 and 7, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 136887 in words is "one hundred thirty-six thousand, eight hundred eighty-seven".