136720583 has 2 divisors, whose sum is σ = 136720584. Its totient is φ = 136720582.

The previous prime is 136720567. The next prime is 136720589. The reversal of 136720583 is 385027631.

It is a strong prime.

It is an emirp because it is prime and its reverse (385027631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136720583 - 2⁴ = 136720567 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136720589) 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 as a sum of consecutive naturals, namely, 68360291 + 68360292.

It is an arithmetic number, because the mean of its divisors is an integer number (68360292).

Almost surely, 2^136720583 is an apocalyptic number.

136720583 is a deficient number, since it is larger than the sum of its proper divisors (1).

136720583 is an equidigital number, since it uses as much as digits as its factorization.

136720583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 136720583 is about 11692.7577157829. The cubic root of 136720583 is about 515.1629647335.

The spelling of 136720583 in words is "one hundred thirty-six million, seven hundred twenty thousand, five hundred eighty-three".