135961773 has 16 divisors (see below), whose sum is σ = 187942080. Its totient is φ = 87325056.

The previous prime is 135961769. The next prime is 135961807. The reversal of 135961773 is 377169531.

It is not a de Polignac number, because 135961773 - 2² = 135961769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135961703) 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 in 15 ways as a sum of consecutive naturals, for example, 46161 + ... + 49017.

It is an arithmetic number, because the mean of its divisors is an integer number (11746380).

Almost surely, 2^135961773 is an apocalyptic number.

It is an amenable number.

135961773 is a deficient number, since it is larger than the sum of its proper divisors (51980307).

135961773 is a wasteful number, since it uses less digits than its factorization.

135961773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436.

The product of its digits is 119070, while the sum is 42.

The square root of 135961773 is about 11660.2647054001. The cubic root of 135961773 is about 514.2081310767.

The spelling of 135961773 in words is "one hundred thirty-five million, nine hundred sixty-one thousand, seven hundred seventy-three".