136568641 has 8 divisors (see below), whose sum is σ = 155461824. Its totient is φ = 118755120.

The previous prime is 136568617. The next prime is 136568669. The reversal of 136568641 is 146865631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136568641 - 2⁷ = 136568513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136568594 and 136568603.

It is not an unprimeable number, because it can be changed into a prime (136568681) 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 7 ways as a sum of consecutive naturals, for example, 269646 + ... + 270151.

It is an arithmetic number, because the mean of its divisors is an integer number (19432728).

Almost surely, 2^136568641 is an apocalyptic number.

136568641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136568641 is a deficient number, since it is larger than the sum of its proper divisors (18893183).

136568641 is a wasteful number, since it uses less digits than its factorization.

136568641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539831.

The product of its digits is 103680, while the sum is 40.

The square root of 136568641 is about 11686.2586399583. The cubic root of 136568641 is about 514.9720549137.

The spelling of 136568641 in words is "one hundred thirty-six million, five hundred sixty-eight thousand, six hundred forty-one".