136768417 has 8 divisors (see below), whose sum is σ = 145249416. Its totient is φ = 128335872.

The previous prime is 136768409. The next prime is 136768421. The reversal of 136768417 is 714867631.

It can be written as a sum of positive squares in 4 ways, for example, as 5803281 + 130965136 = 2409^2 + 11444^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 136768417 - 2³ = 136768409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136768427) 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, 6208 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (18156177).

Almost surely, 2^136768417 is an apocalyptic number.

136768417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

136768417 is a deficient number, since it is larger than the sum of its proper divisors (8480999).

136768417 is a wasteful number, since it uses less digits than its factorization.

136768417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24227.

The product of its digits is 169344, while the sum is 43.

The square root of 136768417 is about 11694.8029910726. The cubic root of 136768417 is about 515.2230372099.

The spelling of 136768417 in words is "one hundred thirty-six million, seven hundred sixty-eight thousand, four hundred seventeen".