3136604221 has 2 divisors, whose sum is σ = 3136604222. Its totient is φ = 3136604220.

The previous prime is 3136604209. The next prime is 3136604239. The reversal of 3136604221 is 1224066313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2353220100 + 783384121 = 48510^2 + 27989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3136604221 is a prime.

It is a super-3 number, since 3×3136604221³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3136604221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3136604281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568302110 + 1568302111.

It is an arithmetic number, because the mean of its divisors is an integer number (1568302111).

Almost surely, 2^3136604221 is an apocalyptic number.

It is an amenable number.

3136604221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3136604221 is an equidigital number, since it uses as much as digits as its factorization.

3136604221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3136604221 is about 56005.3945705233. The cubic root of 3136604221 is about 1463.8162843225.

The spelling of 3136604221 in words is "three billion, one hundred thirty-six million, six hundred four thousand, two hundred twenty-one".