136531365 has 8 divisors (see below), whose sum is σ = 218450208. Its totient is φ = 72816720.

The previous prime is 136531357. The next prime is 136531387. The reversal of 136531365 is 563135631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136531365 - 2³ = 136531357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551031 + ... + 4551060.

It is an arithmetic number, because the mean of its divisors is an integer number (27306276).

Almost surely, 2^136531365 is an apocalyptic number.

136531365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136531365 is a deficient number, since it is larger than the sum of its proper divisors (81918843).

136531365 is an equidigital number, since it uses as much as digits as its factorization.

136531365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102099.

The product of its digits is 24300, while the sum is 33.

The square root of 136531365 is about 11684.6636665332. The cubic root of 136531365 is about 514.9251972922.

Adding to 136531365 its reverse (563135631), we get a palindrome (699666996).

It can be divided in two parts, 1365313 and 65, that added together give a triangular number (1365378 = T₁₆₅₂).

The spelling of 136531365 in words is "one hundred thirty-six million, five hundred thirty-one thousand, three hundred sixty-five".