136944853 has 2 divisors, whose sum is σ = 136944854. Its totient is φ = 136944852.

The previous prime is 136944823. The next prime is 136944869. The reversal of 136944853 is 358449631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128890609 + 8054244 = 11353^2 + 2838^2 .

It is a cyclic number.

It is not a de Polignac number, because 136944853 - 2⁹ = 136944341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136944823) 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, 68472426 + 68472427.

It is an arithmetic number, because the mean of its divisors is an integer number (68472427).

Almost surely, 2^136944853 is an apocalyptic number.

It is an amenable number.

136944853 is a deficient number, since it is larger than the sum of its proper divisors (1).

136944853 is an equidigital number, since it uses as much as digits as its factorization.

136944853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The square root of 136944853 is about 11702.3439105164. The cubic root of 136944853 is about 515.4444938689. Note that the first 4 decimals are identical.

The spelling of 136944853 in words is "one hundred thirty-six million, nine hundred forty-four thousand, eight hundred fifty-three".