136506383 has 4 divisors (see below), whose sum is σ = 147006888. Its totient is φ = 126005880.

The previous prime is 136506371. The next prime is 136506407. The reversal of 136506383 is 383605631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383605631 = 2239 ⋅171329.

It is not a de Polignac number, because 136506383 - 2⁴ = 136506367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136506883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5250233 + ... + 5250258.

It is an arithmetic number, because the mean of its divisors is an integer number (36751722).

Almost surely, 2^136506383 is an apocalyptic number.

136506383 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136506383 is a deficient number, since it is larger than the sum of its proper divisors (10500505).

136506383 is a wasteful number, since it uses less digits than its factorization.

136506383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500504.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 136506383 is about 11683.5946095369. The cubic root of 136506383 is about 514.8937890124.

The spelling of 136506383 in words is "one hundred thirty-six million, five hundred six thousand, three hundred eighty-three".