136626121 has 2 divisors, whose sum is σ = 136626122. Its totient is φ = 136626120.

The previous prime is 136626107. The next prime is 136626137. The reversal of 136626121 is 121626631.

136626121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96746896 + 39879225 = 9836^2 + 6315^2 .

It is a cyclic number.

It is not a de Polignac number, because 136626121 - 2⁹ = 136625609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136626121.

It is not a weakly prime, because it can be changed into another prime (136626181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68313060 + 68313061.

It is an arithmetic number, because the mean of its divisors is an integer number (68313061).

Almost surely, 2^136626121 is an apocalyptic number.

It is an amenable number.

136626121 is a deficient number, since it is larger than the sum of its proper divisors (1).

136626121 is an equidigital number, since it uses as much as digits as its factorization.

136626121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 136626121 is about 11688.7176798826. The cubic root of 136626121 is about 515.0442931710.

The spelling of 136626121 in words is "one hundred thirty-six million, six hundred twenty-six thousand, one hundred twenty-one".