136215 has 16 divisors (see below), whose sum is σ = 242400. Its totient is φ = 72576.

The previous prime is 136207. The next prime is 136217. The reversal of 136215 is 512631.

It is not a de Polignac number, because 136215 - 2³ = 136207 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136215.

It is not an unprimeable number, because it can be changed into a prime (136217) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 370 + ... + 639.

It is an arithmetic number, because the mean of its divisors is an integer number (15150).

2¹³⁶²¹⁵ is an apocalyptic number.

136215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136215 is a deficient number, since it is larger than the sum of its proper divisors (106185).

136215 is a wasteful number, since it uses less digits than its factorization.

136215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1017 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 136215 is about 369.0731634785. The cubic root of 136215 is about 51.4527168367.

Adding to 136215 its reverse (512631), we get a palindrome (648846).

It can be divided in two parts, 136 and 215, that added together give a triangular number (351 = T₂₆).

The spelling of 136215 in words is "one hundred thirty-six thousand, two hundred fifteen".