136630589 has 2 divisors, whose sum is σ = 136630590. Its totient is φ = 136630588.

The previous prime is 136630567. The next prime is 136630597. The reversal of 136630589 is 985036631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91968100 + 44662489 = 9590^2 + 6683^2 .

It is an emirp because it is prime and its reverse (985036631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136630589 - 2¹² = 136626493 is a 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 (136630289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68315294 + 68315295.

It is an arithmetic number, because the mean of its divisors is an integer number (68315295).

Almost surely, 2^136630589 is an apocalyptic number.

It is an amenable number.

136630589 is a deficient number, since it is larger than the sum of its proper divisors (1).

136630589 is an equidigital number, since it uses as much as digits as its factorization.

136630589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 136630589 is about 11688.9088027925. The cubic root of 136630589 is about 515.0499075020.

The spelling of 136630589 in words is "one hundred thirty-six million, six hundred thirty thousand, five hundred eighty-nine".