136515 has 16 divisors (see below), whose sum is σ = 230400. Its totient is φ = 68832.

The previous prime is 136511. The next prime is 136519. The reversal of 136515 is 515631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (136511) and next prime (136519).

It is not a de Polignac number, because 136515 - 2² = 136511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136491 and 136500.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136515.

It is not an unprimeable number, because it can be changed into a prime (136511) 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, 46 + ... + 524.

It is an arithmetic number, because the mean of its divisors is an integer number (14400).

2¹³⁶⁵¹⁵ is an apocalyptic number.

136515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136515 is a deficient number, since it is larger than the sum of its proper divisors (93885).

136515 is a wasteful number, since it uses less digits than its factorization.

136515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506.

The product of its digits is 450, while the sum is 21.

The square root of 136515 is about 369.4793634291. The cubic root of 136515 is about 51.4904623051.

Multiplying 136515 by its sum of digits (21), we get a triangular number (2866815 = T₂₃₉₄).

The spelling of 136515 in words is "one hundred thirty-six thousand, five hundred fifteen".