136842225 has 24 divisors (see below), whose sum is σ = 243651072. Its totient is φ = 67368000.

The previous prime is 136842187. The next prime is 136842227. The reversal of 136842225 is 522248631.

It is not a de Polignac number, because 136842225 - 2⁹ = 136841713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136842227) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 69201 + ... + 71150.

It is an arithmetic number, because the mean of its divisors is an integer number (10152128).

Almost surely, 2^136842225 is an apocalyptic number.

136842225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136842225 is a deficient number, since it is larger than the sum of its proper divisors (106808847).

136842225 is a wasteful number, since it uses less digits than its factorization.

136842225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140377 (or 140372 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 136842225 is about 11697.9581551654. The cubic root of 136842225 is about 515.3157017402.

The spelling of 136842225 in words is "one hundred thirty-six million, eight hundred forty-two thousand, two hundred twenty-five".