136605015 has 16 divisors (see below), whose sum is σ = 242853600. Its totient is φ = 72855936.

The previous prime is 136605011. The next prime is 136605017. The reversal of 136605015 is 510506631.

It is a happy number.

It is not a de Polignac number, because 136605015 - 2² = 136605011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 136605015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136605011) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 505810 + ... + 506079.

It is an arithmetic number, because the mean of its divisors is an integer number (15178350).

Almost surely, 2^136605015 is an apocalyptic number.

136605015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136605015 is a deficient number, since it is larger than the sum of its proper divisors (106248585).

136605015 is a wasteful number, since it uses less digits than its factorization.

136605015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011903 (or 1011897 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 136605015 is about 11687.8148085945. The cubic root of 136605015 is about 515.0177704617.

The spelling of 136605015 in words is "one hundred thirty-six million, six hundred five thousand, fifteen".