3136485221 has 2 divisors, whose sum is σ = 3136485222. Its totient is φ = 3136485220.

The previous prime is 3136485217. The next prime is 3136485337. The reversal of 3136485221 is 1225846313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2485521025 + 650964196 = 49855^2 + 25514^2 .

It is a cyclic number.

It is not a de Polignac number, because 3136485221 - 2² = 3136485217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3136485721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568242610 + 1568242611.

It is an arithmetic number, because the mean of its divisors is an integer number (1568242611).

Almost surely, 2^3136485221 is an apocalyptic number.

It is an amenable number.

3136485221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3136485221 is an equidigital number, since it uses as much as digits as its factorization.

3136485221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 3136485221 is about 56004.3321627890. The cubic root of 3136485221 is about 1463.7977721218.

The spelling of 3136485221 in words is "three billion, one hundred thirty-six million, four hundred eighty-five thousand, two hundred twenty-one".