136338447 has 16 divisors (see below), whose sum is σ = 209898752. Its totient is φ = 77103360.

The previous prime is 136338443. The next prime is 136338469. The reversal of 136338447 is 744833631.

It is not a de Polignac number, because 136338447 - 2² = 136338443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136338443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31429 + ... + 35502.

It is an arithmetic number, because the mean of its divisors is an integer number (13118672).

Almost surely, 2^136338447 is an apocalyptic number.

136338447 is a deficient number, since it is larger than the sum of its proper divisors (73560305).

136338447 is an equidigital number, since it uses as much as digits as its factorization.

136338447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67038.

The product of its digits is 145152, while the sum is 39.

The square root of 136338447 is about 11676.4055684958. The cubic root of 136338447 is about 514.6825542332.

The spelling of 136338447 in words is "one hundred thirty-six million, three hundred thirty-eight thousand, four hundred forty-seven".