136345 has 16 divisors (see below), whose sum is σ = 186048. Its totient is φ = 95040.

The previous prime is 136343. The next prime is 136351. The reversal of 136345 is 543631.

It is not a de Polignac number, because 136345 - 2¹ = 136343 is a prime.

It is a Duffinian number.

Its product of digits (1080) is a multiple of the sum of its prime divisors (120).

It is not an unprimeable number, because it can be changed into a prime (136343) 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, 2002 + ... + 2068.

It is an arithmetic number, because the mean of its divisors is an integer number (11628).

2¹³⁶³⁴⁵ is an apocalyptic number.

136345 is the 185-th decagonal number.

It is an amenable number.

136345 is a deficient number, since it is larger than the sum of its proper divisors (49703).

136345 is a wasteful number, since it uses less digits than its factorization.

136345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120.

The product of its digits is 1080, while the sum is 22.

The square root of 136345 is about 369.2492383201. The cubic root of 136345 is about 51.4690800038.

Adding to 136345 its reverse (543631), we get a palindrome (679976).

The spelling of 136345 in words is "one hundred thirty-six thousand, three hundred forty-five".