136878228 has 48 divisors (see below), whose sum is σ = 355810560. Its totient is φ = 45505152.

The previous prime is 136878227. The next prime is 136878233. The reversal of 136878228 is 822878631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136878227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45301 + ... + 48227.

It is an arithmetic number, because the mean of its divisors is an integer number (7412720).

Almost surely, 2^136878228 is an apocalyptic number.

136878228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136878228 is an abundant number, since it is smaller than the sum of its proper divisors (218932332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136878228 is a wasteful number, since it uses less digits than its factorization.

136878228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373 (or 3365 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 136878228 is about 11699.4969122608. The cubic root of 136878228 is about 515.3608907266.

The spelling of 136878228 in words is "one hundred thirty-six million, eight hundred seventy-eight thousand, two hundred twenty-eight".