3135661273 has 2 divisors, whose sum is σ = 3135661274. Its totient is φ = 3135661272.

The previous prime is 3135661223. The next prime is 3135661303. The reversal of 3135661273 is 3721665313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2865782089 + 269879184 = 53533^2 + 16428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3135661273 is a prime.

It is not a weakly prime, because it can be changed into another prime (3135661223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567830636 + 1567830637.

It is an arithmetic number, because the mean of its divisors is an integer number (1567830637).

Almost surely, 2^3135661273 is an apocalyptic number.

It is an amenable number.

3135661273 is a deficient number, since it is larger than the sum of its proper divisors (1).

3135661273 is an equidigital number, since it uses as much as digits as its factorization.

3135661273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 37.

The square root of 3135661273 is about 55996.9755701145. The cubic root of 3135661273 is about 1463.6695820417.

It can be divided in two parts, 31356 and 61273, that added together give a palindrome (92629).

The spelling of 3135661273 in words is "three billion, one hundred thirty-five million, six hundred sixty-one thousand, two hundred seventy-three".