3136645241 has 4 divisors (see below), whose sum is σ = 3136758132. Its totient is φ = 3136532352.

The previous prime is 3136645219. The next prime is 3136645271. The reversal of 3136645241 is 1425466313.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1425466313 = 97 ⋅14695529.

It can be written as a sum of positive squares in 2 ways, for example, as 2014663225 + 1121982016 = 44885^2 + 33496^2 .

It is a cyclic number.

It is not a de Polignac number, because 3136645241 - 2⁶ = 3136645177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3136645201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17681 + ... + 81153.

It is an arithmetic number, because the mean of its divisors is an integer number (784189533).

Almost surely, 2^3136645241 is an apocalyptic number.

It is an amenable number.

3136645241 is a deficient number, since it is larger than the sum of its proper divisors (112891).

3136645241 is an equidigital number, since it uses as much as digits as its factorization.

3136645241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112890.

The product of its digits is 51840, while the sum is 35.

The square root of 3136645241 is about 56005.7607840479. The cubic root of 3136645241 is about 1463.8226654785.

The spelling of 3136645241 in words is "three billion, one hundred thirty-six million, six hundred forty-five thousand, two hundred forty-one".