136565020 has 24 divisors (see below), whose sum is σ = 289329264. Its totient is φ = 54141696.

The previous prime is 136565017. The next prime is 136565057. The reversal of 136565020 is 20565631.

It is a self number, because there is not a number n which added to its sum of digits gives 136565020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27954 + ... + 32473.

It is an arithmetic number, because the mean of its divisors is an integer number (12055386).

Almost surely, 2^136565020 is an apocalyptic number.

136565020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136565020 is an abundant number, since it is smaller than the sum of its proper divisors (152764244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136565020 is a wasteful number, since it uses less digits than its factorization.

136565020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60549 (or 60547 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 136565020 is about 11686.1037133854. The cubic root of 136565020 is about 514.9675035265.

The spelling of 136565020 in words is "one hundred thirty-six million, five hundred sixty-five thousand, twenty".