136384445 has 4 divisors (see below), whose sum is σ = 163661340. Its totient is φ = 109107552.

The previous prime is 136384403. The next prime is 136384481. The reversal of 136384445 is 544483631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80389156 + 55995289 = 8966^2 + 7483^2 .

It is a cyclic number.

It is not a de Polignac number, because 136384445 - 2¹⁰ = 136383421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136384399 and 136384408.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13638440 + ... + 13638449.

It is an arithmetic number, because the mean of its divisors is an integer number (40915335).

Almost surely, 2^136384445 is an apocalyptic number.

It is an amenable number.

136384445 is a deficient number, since it is larger than the sum of its proper divisors (27276895).

136384445 is an equidigital number, since it uses as much as digits as its factorization.

136384445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27276894.

The product of its digits is 138240, while the sum is 38.

The square root of 136384445 is about 11678.3751010147. The cubic root of 136384445 is about 514.7404290947.

The spelling of 136384445 in words is "one hundred thirty-six million, three hundred eighty-four thousand, four hundred forty-five".