136187385 has 16 divisors (see below), whose sum is σ = 218066496. Its totient is φ = 72577728.

The previous prime is 136187377. The next prime is 136187423. The reversal of 136187385 is 583781631.

136187385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136187385 - 2³ = 136187377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23607 + ... + 28803.

It is an arithmetic number, because the mean of its divisors is an integer number (13629156).

Almost surely, 2^136187385 is an apocalyptic number.

136187385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136187385 is a deficient number, since it is larger than the sum of its proper divisors (81879111).

136187385 is a wasteful number, since it uses less digits than its factorization.

136187385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6952.

The product of its digits is 120960, while the sum is 42.

The square root of 136187385 is about 11669.9350897938. The cubic root of 136187385 is about 514.4923958186.

The spelling of 136187385 in words is "one hundred thirty-six million, one hundred eighty-seven thousand, three hundred eighty-five".