136501389 has 16 divisors (see below), whose sum is σ = 211017600. Its totient is φ = 87043968.

The previous prime is 136501361. The next prime is 136501403. The reversal of 136501389 is 983105631.

It is a happy number.

It is not a de Polignac number, because 136501389 - 2¹² = 136497293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136501349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109284 + ... + 110525.

It is an arithmetic number, because the mean of its divisors is an integer number (13188600).

Almost surely, 2^136501389 is an apocalyptic number.

It is an amenable number.

136501389 is a deficient number, since it is larger than the sum of its proper divisors (74516211).

136501389 is a wasteful number, since it uses less digits than its factorization.

136501389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219841 (or 219835 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 136501389 is about 11683.3808891091. The cubic root of 136501389 is about 514.8875099142.

The spelling of 136501389 in words is "one hundred thirty-six million, five hundred one thousand, three hundred eighty-nine".