136736905 has 16 divisors (see below), whose sum is σ = 166281984. Its totient is φ = 107933440.

The previous prime is 136736891. The next prime is 136736911. The reversal of 136736905 is 509637631.

It is not a de Polignac number, because 136736905 - 2¹⁹ = 136212617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230289 + ... + 230881.

It is an arithmetic number, because the mean of its divisors is an integer number (10392624).

Almost surely, 2^136736905 is an apocalyptic number.

It is an amenable number.

136736905 is a deficient number, since it is larger than the sum of its proper divisors (29545079).

136736905 is a wasteful number, since it uses less digits than its factorization.

136736905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 136736905 is about 11693.4556483531. The cubic root of 136736905 is about 515.1834643421.

It can be divided in two parts, 136736 and 905, that added together give a square (137641 = 371²).

The spelling of 136736905 in words is "one hundred thirty-six million, seven hundred thirty-six thousand, nine hundred five".