136752228 has 36 divisors (see below), whose sum is σ = 346577868. Its totient is φ = 45465600.

The previous prime is 136752221. The next prime is 136752247. The reversal of 136752228 is 822257631.

It can be written as a sum of positive squares in 2 ways, for example, as 134374464 + 2377764 = 11592^2 + 1542^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 136752192 and 136752201.

It is not an unprimeable number, because it can be changed into a prime (136752221) 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 11 ways as a sum of consecutive naturals, for example, 9700 + ... + 19172.

It is an arithmetic number, because the mean of its divisors is an integer number (9627163).

Almost surely, 2^136752228 is an apocalyptic number.

136752228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136752228 is an abundant number, since it is smaller than the sum of its proper divisors (209825640).

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

136752228 is a wasteful number, since it uses less digits than its factorization.

136752228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9884 (or 9879 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 136752228 is about 11694.1108255395. The cubic root of 136752228 is about 515.2027077726.

The spelling of 136752228 in words is "one hundred thirty-six million, seven hundred fifty-two thousand, two hundred twenty-eight".