136135142320 has 40 divisors (see below), whose sum is σ = 316533642336. Its totient is φ = 54450713088.

The previous prime is 136135142251. The next prime is 136135142321. The reversal of 136135142320 is 23241531631.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (136135142321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572484 + ... + 1656796.

Almost surely, 2^136135142320 is an apocalyptic number.

136135142320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136135142320 is an abundant number, since it is smaller than the sum of its proper divisors (180398500016).

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

136135142320 is a wasteful number, since it uses less digits than its factorization.

136135142320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104509 (or 104503 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 136135142320 its reverse (23241531631), we get a palindrome (159376673951).

The spelling of 136135142320 in words is "one hundred thirty-six billion, one hundred thirty-five million, one hundred forty-two thousand, three hundred twenty".