136854905 has 8 divisors (see below), whose sum is σ = 179155584. Its totient is φ = 99530800.

The previous prime is 136854901. The next prime is 136854911. The reversal of 136854905 is 509458631.

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

It is not a de Polignac number, because 136854905 - 2² = 136854901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136854901) 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, 1244081 + ... + 1244190.

It is an arithmetic number, because the mean of its divisors is an integer number (22394448).

Almost surely, 2^136854905 is an apocalyptic number.

It is an amenable number.

136854905 is a deficient number, since it is larger than the sum of its proper divisors (42300679).

136854905 is a wasteful number, since it uses less digits than its factorization.

136854905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488287.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 136854905 is about 11698.5001175364. The cubic root of 136854905 is about 515.3316178832.

The spelling of 136854905 in words is "one hundred thirty-six million, eight hundred fifty-four thousand, nine hundred five".