136217485 has 4 divisors (see below), whose sum is σ = 163460988. Its totient is φ = 108973984.

The previous prime is 136217483. The next prime is 136217491. The reversal of 136217485 is 584712631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45549001 + 90668484 = 6749^2 + 9522^2 .

It is a cyclic number.

It is not a de Polignac number, because 136217485 - 2¹ = 136217483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136217483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13621744 + ... + 13621753.

It is an arithmetic number, because the mean of its divisors is an integer number (40865247).

Almost surely, 2^136217485 is an apocalyptic number.

It is an amenable number.

136217485 is a deficient number, since it is larger than the sum of its proper divisors (27243503).

136217485 is an equidigital number, since it uses as much as digits as its factorization.

136217485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27243502.

The product of its digits is 40320, while the sum is 37.

The square root of 136217485 is about 11671.2246572500. The cubic root of 136217485 is about 514.5302972252.

The spelling of 136217485 in words is "one hundred thirty-six million, two hundred seventeen thousand, four hundred eighty-five".