136890773 has 2 divisors, whose sum is σ = 136890774. Its totient is φ = 136890772.

The previous prime is 136890757. The next prime is 136890791. The reversal of 136890773 is 377098631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70190884 + 66699889 = 8378^2 + 8167^2 .

It is a cyclic number.

It is not a de Polignac number, because 136890773 - 2⁴ = 136890757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136890073) 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, 68445386 + 68445387.

It is an arithmetic number, because the mean of its divisors is an integer number (68445387).

Almost surely, 2^136890773 is an apocalyptic number.

It is an amenable number.

136890773 is a deficient number, since it is larger than the sum of its proper divisors (1).

136890773 is an equidigital number, since it uses as much as digits as its factorization.

136890773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 136890773 is about 11700.0330341414. The cubic root of 136890773 is about 515.3766346595.

The spelling of 136890773 in words is "one hundred thirty-six million, eight hundred ninety thousand, seven hundred seventy-three".