136617853 has 2 divisors, whose sum is σ = 136617854. Its totient is φ = 136617852.

The previous prime is 136617851. The next prime is 136617881. The reversal of 136617853 is 358716631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98942809 + 37675044 = 9947^2 + 6138^2 .

It is a cyclic number.

It is not a de Polignac number, because 136617853 - 2¹ = 136617851 is a prime.

Together with 136617851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136617851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68308926 + 68308927.

It is an arithmetic number, because the mean of its divisors is an integer number (68308927).

Almost surely, 2^136617853 is an apocalyptic number.

It is an amenable number.

136617853 is a deficient number, since it is larger than the sum of its proper divisors (1).

136617853 is an equidigital number, since it uses as much as digits as its factorization.

136617853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 136617853 is about 11688.3640001499. The cubic root of 136617853 is about 515.0339035713.

The spelling of 136617853 in words is "one hundred thirty-six million, six hundred seventeen thousand, eight hundred fifty-three".