136740605 has 8 divisors (see below), whose sum is σ = 173741112. Its totient is φ = 102957568.

The previous prime is 136740577. The next prime is 136740631. The reversal of 136740605 is 506047631.

It can be written as a sum of positive squares in 4 ways, for example, as 56942116 + 79798489 = 7546^2 + 8933^2 .

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 136740605 - 2¹⁶ = 136675069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804272 + ... + 804441.

It is an arithmetic number, because the mean of its divisors is an integer number (21717639).

Almost surely, 2^136740605 is an apocalyptic number.

It is an amenable number.

136740605 is a deficient number, since it is larger than the sum of its proper divisors (37000507).

136740605 is a wasteful number, since it uses less digits than its factorization.

136740605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608735.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 136740605 is about 11693.6138554341. The cubic root of 136740605 is about 515.1881111286.

The spelling of 136740605 in words is "one hundred thirty-six million, seven hundred forty thousand, six hundred five".