136882621 has 2 divisors, whose sum is σ = 136882622. Its totient is φ = 136882620.

The previous prime is 136882561. The next prime is 136882651. The reversal of 136882621 is 126288631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136539225 + 343396 = 11685^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 136882621 - 2¹¹ = 136880573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136882651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68441310 + 68441311.

It is an arithmetic number, because the mean of its divisors is an integer number (68441311).

Almost surely, 2^136882621 is an apocalyptic number.

It is an amenable number.

136882621 is a deficient number, since it is larger than the sum of its proper divisors (1).

136882621 is an equidigital number, since it uses as much as digits as its factorization.

136882621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 136882621 is about 11699.6846538699. The cubic root of 136882621 is about 515.3664040363.

The spelling of 136882621 in words is "one hundred thirty-six million, eight hundred eighty-two thousand, six hundred twenty-one".