136563620 has 24 divisors (see below), whose sum is σ = 293780088. Its totient is φ = 53292800.

The previous prime is 136563619. The next prime is 136563641. The reversal of 136563620 is 26365631.

It can be written as a sum of positive squares in 4 ways, for example, as 1024 + 136562596 = 32^2 + 11686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82451 + ... + 84090.

It is an arithmetic number, because the mean of its divisors is an integer number (12240837).

Almost surely, 2^136563620 is an apocalyptic number.

136563620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136563620 is an abundant number, since it is smaller than the sum of its proper divisors (157216468).

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

136563620 is a wasteful number, since it uses less digits than its factorization.

136563620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166591 (or 166589 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 136563620 is about 11686.0438130276. The cubic root of 136563620 is about 514.9657437861.

The spelling of 136563620 in words is "one hundred thirty-six million, five hundred sixty-three thousand, six hundred twenty".