136306889 has 8 divisors (see below), whose sum is σ = 137648160. Its totient is φ = 134972416.

The previous prime is 136306883. The next prime is 136306897. The reversal of 136306889 is 988603631.

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 136306889 - 2¹⁶ = 136241353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136306883) 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, 44522 + ... + 47484.

It is an arithmetic number, because the mean of its divisors is an integer number (17206020).

Almost surely, 2^136306889 is an apocalyptic number.

It is an amenable number.

136306889 is a deficient number, since it is larger than the sum of its proper divisors (1341271).

136306889 is a wasteful number, since it uses less digits than its factorization.

136306889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 136306889 is about 11675.0541326368. The cubic root of 136306889 is about 514.6428403062.

The spelling of 136306889 in words is "one hundred thirty-six million, three hundred six thousand, eight hundred eighty-nine".