2135236673 has 2 divisors, whose sum is σ = 2135236674. Its totient is φ = 2135236672.

The previous prime is 2135236639. The next prime is 2135236687. The reversal of 2135236673 is 3766325312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1736555584 + 398681089 = 41672^2 + 19967^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135236673 - 2³⁰ = 1061494849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2135236573) 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, 1067618336 + 1067618337.

It is an arithmetic number, because the mean of its divisors is an integer number (1067618337).

Almost surely, 2^2135236673 is an apocalyptic number.

It is an amenable number.

2135236673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135236673 is an equidigital number, since it uses as much as digits as its factorization.

2135236673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 38.

The square root of 2135236673 is about 46208.6211977808. The cubic root of 2135236673 is about 1287.7019103079.

The spelling of 2135236673 in words is "two billion, one hundred thirty-five million, two hundred thirty-six thousand, six hundred seventy-three".