136710887 has 4 divisors (see below), whose sum is σ = 138751416. Its totient is φ = 134670360.

The previous prime is 136710869. The next prime is 136710907. The reversal of 136710887 is 788017631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136710887 - 2²⁰ = 135662311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136710817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020164 + ... + 1020297.

It is an arithmetic number, because the mean of its divisors is an integer number (34687854).

Almost surely, 2^136710887 is an apocalyptic number.

136710887 is a deficient number, since it is larger than the sum of its proper divisors (2040529).

136710887 is an equidigital number, since it uses as much as digits as its factorization.

136710887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040528.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 136710887 is about 11692.3430928108. The cubic root of 136710887 is about 515.1507862741.

The spelling of 136710887 in words is "one hundred thirty-six million, seven hundred ten thousand, eight hundred eighty-seven".