136235320 has 64 divisors (see below), whose sum is σ = 347508000. Its totient is φ = 47651328.

The previous prime is 136235299. The next prime is 136235327. The reversal of 136235320 is 23532631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136235327) 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, 2986 + ... + 16774.

Almost surely, 2^136235320 is an apocalyptic number.

136235320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136235320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173754000).

136235320 is an abundant number, since it is smaller than the sum of its proper divisors (211272680).

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

136235320 is a wasteful number, since it uses less digits than its factorization.

136235320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832 (or 13828 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 136235320 is about 11671.9886908787. The cubic root of 136235320 is about 514.5527521187.

Adding to 136235320 its reverse (23532631), we get a palindrome (159767951).

The spelling of 136235320 in words is "one hundred thirty-six million, two hundred thirty-five thousand, three hundred twenty".