136192985 has 4 divisors (see below), whose sum is σ = 163431588. Its totient is φ = 108954384.

The previous prime is 136192949. The next prime is 136193033. The reversal of 136192985 is 589291631.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100861849 + 35331136 = 10043^2 + 5944^2 .

It is a cyclic number.

It is not a de Polignac number, because 136192985 - 2¹² = 136188889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13619294 + ... + 13619303.

It is an arithmetic number, because the mean of its divisors is an integer number (40857897).

Almost surely, 2^136192985 is an apocalyptic number.

It is an amenable number.

136192985 is a deficient number, since it is larger than the sum of its proper divisors (27238603).

136192985 is an equidigital number, since it uses as much as digits as its factorization.

136192985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27238602.

The product of its digits is 116640, while the sum is 44.

The square root of 136192985 is about 11670.1750201100. The cubic root of 136192985 is about 514.4994476659.

The spelling of 136192985 in words is "one hundred thirty-six million, one hundred ninety-two thousand, nine hundred eighty-five".