136218125 has 20 divisors (see below), whose sum is σ = 179192640. Its totient is φ = 103230000.

The previous prime is 136218119. The next prime is 136218139. The reversal of 136218125 is 521812631.

It is not a de Polignac number, because 136218125 - 2¹⁰ = 136217101 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6140 + ... + 17610.

It is an arithmetic number, because the mean of its divisors is an integer number (8959632).

Almost surely, 2^136218125 is an apocalyptic number.

It is an amenable number.

136218125 is a deficient number, since it is larger than the sum of its proper divisors (42974515).

136218125 is an equidigital number, since it uses as much as digits as its factorization.

136218125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11510 (or 11495 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 136218125 is about 11671.2520750775. The cubic root of 136218125 is about 514.5311030416.

The spelling of 136218125 in words is "one hundred thirty-six million, two hundred eighteen thousand, one hundred twenty-five".