136122020 has 48 divisors (see below), whose sum is σ = 292925808. Its totient is φ = 53114880.

The previous prime is 136122017. The next prime is 136122031. The reversal of 136122020 is 20221631.

It can be written as a sum of positive squares in 8 ways, for example, as 14945956 + 121176064 = 3866^2 + 11008^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 136122020.

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 15 ways as a sum of consecutive naturals, for example, 297632 + ... + 298088.

It is an arithmetic number, because the mean of its divisors is an integer number (6102621).

Almost surely, 2^136122020 is an apocalyptic number.

136122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136122020 is an abundant number, since it is smaller than the sum of its proper divisors (156803788).

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

136122020 is a wasteful number, since it uses less digits than its factorization.

136122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 136122020 is about 11667.1341811089. The cubic root of 136122020 is about 514.4100700896.

Adding to 136122020 its reverse (20221631), we get a palindrome (156343651).

The spelling of 136122020 in words is "one hundred thirty-six million, one hundred twenty-two thousand, twenty".