136840326 has 16 divisors (see below), whose sum is σ = 312777984. Its totient is φ = 39097224.

The previous prime is 136840307. The next prime is 136840343. The reversal of 136840326 is 623048631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629010 + ... + 1629093.

It is an arithmetic number, because the mean of its divisors is an integer number (19548624).

Almost surely, 2^136840326 is an apocalyptic number.

136840326 is an abundant number, since it is smaller than the sum of its proper divisors (175937658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136840326 is a wasteful number, since it uses less digits than its factorization.

136840326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258115.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 136840326 is about 11697.8769868724. The cubic root of 136840326 is about 515.3133179997.

Adding to 136840326 its reverse (623048631), we get a palindrome (759888957).

The spelling of 136840326 in words is "one hundred thirty-six million, eight hundred forty thousand, three hundred twenty-six".