136020105 has 24 divisors (see below), whose sum is σ = 253905288. Its totient is φ = 66963456.

The previous prime is 136020089. The next prime is 136020127. The reversal of 136020105 is 501020631.

It can be written as a sum of positive squares in 4 ways, for example, as 251001 + 135769104 = 501^2 + 11652^2 .

It is not a de Polignac number, because 136020105 - 2⁴ = 136020089 is a prime.

It is a super-2 number, since 2×136020105² = 37002937928422050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115672 + ... + 116841.

It is an arithmetic number, because the mean of its divisors is an integer number (10579387).

Almost surely, 2^136020105 is an apocalyptic number.

136020105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136020105 is a deficient number, since it is larger than the sum of its proper divisors (117885183).

136020105 is a wasteful number, since it uses less digits than its factorization.

136020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232537 (or 232534 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 136020105 is about 11662.7657525992. The cubic root of 136020105 is about 514.2816578714.

Adding to 136020105 its reverse (501020631), we get a palindrome (637040736).

The spelling of 136020105 in words is "one hundred thirty-six million, twenty thousand, one hundred five".